US9540883B2 - Fiber-containing diamond-impregnated cutting tools and methods of forming and using same - Google Patents

Fiber-containing diamond-impregnated cutting tools and methods of forming and using same Download PDF

Info

Publication number
US9540883B2
US9540883B2 US14/229,387 US201414229387A US9540883B2 US 9540883 B2 US9540883 B2 US 9540883B2 US 201414229387 A US201414229387 A US 201414229387A US 9540883 B2 US9540883 B2 US 9540883B2
Authority
US
United States
Prior art keywords
cutting tool
cutting
fibers
steel
drill bit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US14/229,387
Other versions
US20140231149A1 (en
Inventor
Kristian S. Drivdahl
Michael D. Rupp
Christian M. Lambert
Cody A. Pearce
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boart Longyear Co
Original Assignee
Longyear TM Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US11/948,185 external-priority patent/US7695542B2/en
Priority to US14/229,387 priority Critical patent/US9540883B2/en
Application filed by Longyear TM Inc filed Critical Longyear TM Inc
Assigned to LONGYEAR TM, INC. reassignment LONGYEAR TM, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DRIVDAHL, KRISTIAN S., LAMBERT, CHRISTIAN M., PEARCE, CODY A., RUPP, MICHAEL D.
Assigned to U.S. BANK NATIONAL ASSOCIATION reassignment U.S. BANK NATIONAL ASSOCIATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LONGYEAR TM, INC.
Assigned to BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT reassignment BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LONGYEAR TM, INC.
Publication of US20140231149A1 publication Critical patent/US20140231149A1/en
Assigned to WILMINGTON TRUST, N.A. reassignment WILMINGTON TRUST, N.A. SECURITY INTEREST (TERM LOAN B) Assignors: LONGYEAR TM, INC.
Assigned to WILMINGTON TRUST, N.A. reassignment WILMINGTON TRUST, N.A. SECURITY INTEREST (TERM LOAN A) Assignors: LONGYEAR TM, INC.
Assigned to LONGYEAR TM, INC. reassignment LONGYEAR TM, INC. RELEASE OF SECURITY INTEREST RECORDED AT REEL/FRAME 032855/0636 Assignors: BANK OF AMERICA, N.A.
Priority to AU2015235836A priority patent/AU2015235836A1/en
Priority to CA2944197A priority patent/CA2944197A1/en
Priority to PCT/US2015/022965 priority patent/WO2015148910A1/en
Priority to US15/378,992 priority patent/US20170087693A1/en
Publication of US9540883B2 publication Critical patent/US9540883B2/en
Application granted granted Critical
Assigned to WILMINGTON TRUST, NATIONAL ASSOCIATION reassignment WILMINGTON TRUST, NATIONAL ASSOCIATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LONGYEAR TM, INC.
Assigned to WILMINGTON TRUST, NATIONAL ASSOCIATION reassignment WILMINGTON TRUST, NATIONAL ASSOCIATION SECURITY INTEREST (TERM LOAN B) Assignors: LONGYEAR TM, INC.
Assigned to U.S. BANK NATIONAL ASSOCIATION reassignment U.S. BANK NATIONAL ASSOCIATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LONGYEAR TM, INC.
Assigned to WILMINGTON TRUST, NATIONAL ASSOCIATION reassignment WILMINGTON TRUST, NATIONAL ASSOCIATION SECURITY INTEREST (TERM LOAN A) Assignors: LONGYEAR TM, INC.
Assigned to WILMINGTON TRUST, NATIONAL ASSOCIATION reassignment WILMINGTON TRUST, NATIONAL ASSOCIATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LONGYEAR TM, INC.
Assigned to WILMINGTON TRUST, NATIONAL ASSOCIATION reassignment WILMINGTON TRUST, NATIONAL ASSOCIATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LONGYEAR TM, INC.
Assigned to HPS INVESTMENT PARTNERS, LLC reassignment HPS INVESTMENT PARTNERS, LLC SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LONGYEAR TM, INC.
Assigned to LONGYEAR TM, INC. reassignment LONGYEAR TM, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Assigned to LONGYEAR TM, INC. reassignment LONGYEAR TM, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Assigned to LONGYEAR TM, INC. reassignment LONGYEAR TM, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Assigned to LONGYEAR TM, INC. reassignment LONGYEAR TM, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Assigned to LONGYEAR TM, INC. reassignment LONGYEAR TM, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: U.S. BANK NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Assigned to LONGYEAR TM, INC. reassignment LONGYEAR TM, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Assigned to BOART LONGYEAR COMPANY reassignment BOART LONGYEAR COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LONGYEAR TM, INC.
Active legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/34Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
    • B24D3/342Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties incorporated in the bonding agent
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/18Sawing tools of special type, e.g. wire saw strands, saw blades or saw wire equipped with diamonds or other abrasive particles in selected individual positions
    • B23D61/185Saw wires; Saw cables; Twisted saw strips
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/04Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
    • B24D3/06Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/01Layered products comprising a layer of metal all layers being exclusively metallic
    • B32B15/011Layered products comprising a layer of metal all layers being exclusively metallic all layers being formed of iron alloys or steels
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C26/00Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/002Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/02Ferrous alloys, e.g. steel alloys containing silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/04Ferrous alloys, e.g. steel alloys containing manganese
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/06Ferrous alloys, e.g. steel alloys containing aluminium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/34Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/56Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.7% by weight of carbon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/60Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C47/00Making alloys containing metallic or non-metallic fibres or filaments
    • C22C47/02Pretreatment of the fibres or filaments
    • C22C47/04Pretreatment of the fibres or filaments by coating, e.g. with a protective or activated covering
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C49/00Alloys containing metallic or non-metallic fibres or filaments
    • C22C49/02Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C49/00Alloys containing metallic or non-metallic fibres or filaments
    • C22C49/02Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
    • C22C49/08Iron group metals
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C49/00Alloys containing metallic or non-metallic fibres or filaments
    • C22C49/02Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
    • C22C49/10Refractory metals
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C49/00Alloys containing metallic or non-metallic fibres or filaments
    • C22C49/14Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/46Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/48Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F2005/001Cutting tools, earth boring or grinding tool other than table ware
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B22F7/062Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
    • B22F2007/066Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts using impregnation

Definitions

  • This application relates generally to cutting tools and their methods of use.
  • this application relates to diamond-impregnated cutting tools that may contain fibers.
  • Cutting tools can be impregnated with diamonds so that they can be used to grind, polish, or otherwise cut a variety of materials that normal cutting tools cannot.
  • the part of these tools that performs the cutting action (or the cutting portion of the tool) is generally formed of a matrix that contains a powdered metal or a hard particulate material, such as tungsten carbide. This material is sometimes infiltrated with a binder, such as a copper alloy.
  • the cutting portion of these tools is impregnated with diamond crystals or some other form of abrasive cutting media. As the tool grinds and cuts the desired materials, the cutting portion of the tool erodes and exposes new layers of the diamond crystal (or other cutting media) so that a sharp surface is always available for the cutting process. Any diamond-impregnated cutting tool may continue to cut efficiently until the diamond impregnated portion of the tool is completely consumed. At that point, the tool becomes dull and must be replaced with another one.
  • diamond-impregnated cutting tools may be expensive and their replacement may be time consuming, costly, as well as dangerous.
  • the replacement of a diamond-impregnated core sampling drill bit requires removing (or tripping out) the entire drill string out of the hole that has been drilled (the borehole). Each section of the drill rod must be sequentially removed from the borehole. Once the drill bit is replaced, the entire drill string must be assembled section by section and then tripped back into the borehole. Depending on the depth of the hole and the characteristics of the materials being drilled, this process may need to be repeated multiple times for a single borehole.
  • conventional diamond-impregnated cutting tools often have several characteristics that can add to the consumption rate of the cutting portion and, therefore, increase the operating costs associated with those cutting tools.
  • the binder materials in the tools may be relatively soft in comparison to the cutting media. Accordingly, the cutting portion may erode and allow diamonds or other abrasive cutting materials to slough off prematurely.
  • the erosion rate of the cutting portion can be increased by insufficient lubrication to and around the cutting face of the tool, or the interface between the cutting portion of the tool and the material being cut.
  • conventional impregnated cutting tools may also be too wear resistant to expose and renew layers of the cutting portion.
  • the cutting tools contain a diamond-impregnated cutting portion that may contain fibers made from carbon, glass, ceramic, polymer, and the like.
  • the fibers can be in any form, including chopped and milled fibers.
  • the fibers may also be coated with metal, ceramic, or other performance-enhancing coatings.
  • the fibers may be used to both control the tensile strength control the erosion rate of the matrix in the cutting portion to optimize the cutting performance of the tools. Additionally, the fibers may also weaken the structure and allow higher modulus binders to be used for the cutting tools at a lower cost, allowing the amount of fibers to be tailored to retain the diamonds in the cutting portion for the desired amount of time. And as the cutting portion erodes, the fibers may also increase the lubricity at the face of the cutting portion. Using the fibers allows the cutting tools to last longer and make them safer and more economical because they need to be replaced less often.
  • FIG. 1 contains an exemplary view of a core sampling drill bit
  • FIG. 2 contains an exemplary view of a cross section of a diamond wire
  • FIG. 3 contains an exemplary view of a cross section of another diamond wire
  • FIG. 4 contains an exemplary view of a cross section of an individual diamond wire bead.
  • Ranges can be expressed herein as from “about” one particular value, and/or to “about” another particular value. When such a range is expressed, another aspect includes from the one particular value and/or to the other particular value. Similarly, when values are expressed as approximations, by use of the antecedent “about,” it will be understood that the particular value forms another aspect. It will be further understood that the endpoints of each of the ranges are significant both in relation to the other endpoint, and independently of the other endpoint.
  • the terms “optional” or “optionally” mean that the subsequently described event or circumstance may or may not occur, and that the description includes instances where said event or circumstance occurs and instances where it does not.
  • the cutting tools described herein can be used to cut stone, subterranean mineral formations, ceramics, asphalt, concrete, and other hard materials. These cutting tools may include core sampling drill bits, drag-type drill bits, roller cone drill bits, diamond wire, grinding cups, diamond blades, tuck pointers, crack chasers, and the like.
  • the cutting tools may be any type of earth drill bit (i.e., core sampling drill bit, drag drill bit, roller cone bit, navi-drill, full hole drill, hole saw, hole opener, etc.), diamond saw blade (e.g., laser welded blade, concave diamond blade, segmented blade, continuous rim blade, wavy core blade, ventilated core blade, etc.), grinding cup (e.g., single row cup, double row cup, grinding cup with T-shaped segments, etc.), tuck pointer (e.g., triple row, etc.), crack chaser, polishing disk, and so forth.
  • the cutting tools are core sampling drill bits and diamond wire.
  • the part of the cutting tools that performs the cutting action contains a matrix with a powdered metal or a hard particulate material, such as tungsten carbide or any other super-abrasive material.
  • This material can sometimes be infiltrated with a binder, such as a copper alloy or a substantial equivalent, and can be sintered to form a segment.
  • the cutting portion of these tools can also be impregnated with diamonds, or some other form of abrasive cutting media, and mixed (and, in some embodiments, reinforced) with fibrous materials (or fibers) as described in detail in the embodiments where the cutting tool is a core sampling drill bit and a diamond wire.
  • FIG. 1 illustrates one example of a fiber-containing cutting tool, a fiber-containing (and, in some embodiments, fiber-reinforced) core sampling drill bit.
  • the drill bit 20 contains a first section 21 that connects to the rest of the drill string.
  • the drill bit 20 also contains a second section 22 that is used to cut the desired materials during the drilling process.
  • the body of the drill bit 20 has an outer surface and an inner surface containing a hollow portion therein. With this configuration, pieces of the material being drilled can pass through the hollow portion, up into a drill string to which the drill bit is connected, and then be collected.
  • the drill bit 20 may be any size, and may therefore be used to collect core samples of any size. While the drill bit may have any circumference and may be used to remove and collect core samples with any desired diameter, the diameter generally ranges from about 1 to about 12 inches. As well, while the kerf of the drill bit (the radius of the outer surface minus the radius of the inner surface) may be any width, it generally ranges from about 1 ⁇ 2 of an inch to about 6 inches.
  • the first section 21 of the drill bit may be made of any suitable material known in the art.
  • the first section may be made of steel or a matrix casting of a hard particulate material in a binder.
  • the first section 21 may contain a chuck end, sometimes called a blank, bit body, or shank, that may be used for any purpose, including connecting the drill bit to the nearest part of the drill string.
  • the chuck end can be configured as known in the art to connect the drill bit 20 to any desired part of the drill string.
  • the second section 22 of the core sampling drill bit 20 contains a cutting portion with cutting elements 12 having a cutting face 14 .
  • the cutting elements 12 have a space 16 between them so that, as known in the art, a drilling fluid following the path shown by the arrow may be used during drilling.
  • the cutting portion of the core sampling drill bit often called the crown, may be constructed of any material(s) known in the art.
  • This type of drill bit (a core sampling bit) is generally formed of steel or a matrix of powdered metal, which is a hard particulate material, such as tungsten carbide, tungsten, iron, cobalt, and/or molybdenum.
  • This material may then be infiltrated with a binder, such as a copper alloy, zinc, silver, molybdenum, nickel, cobalt, or a substantial equivalent, and/or may be sintered.
  • a binder such as a copper alloy, zinc, silver, molybdenum, nickel, cobalt, or a substantial equivalent
  • the cutting portion of the drill bit may also be impregnated with any form or combination of forms of cutting media, such as diamond crystals.
  • the cutting media used in the drill bit may have any desired characteristic or grain, quality, grit, concentration, etc.
  • the cutting media may be very small and substantially round in order to leave a smooth finish on the material being cut by the core sampling drill bit.
  • the cutting media may be larger to cut aggressively into the material being cut.
  • the cutting media may be contained homogeneously or heterogeneously in the drill bit.
  • the cutting media may be aligned in a particular manner so that the cutting properties of the media are presented in an advantageous position with respect to the cutting portion of the drill bit.
  • the cutting media may be contained in the drill bit in a variety of densities as desired for a particular use. For example, large abrasive particles spaced further apart may cut material more quickly than small abrasive particles packed tightly together. But the size, density, and shape of the abrasive particles may be provided in a variety of combinations depending on desired cost and performance of the drill bit.
  • the cutting portion of the drill bit may be made of one or more layers.
  • the cutting portion may contain two layers: a matrix layer that performs the cutting operation and a backing layer, which connects the matrix layer to the first section of the drill bit.
  • the matrix layer contains the actual cutting media that abrades and erodes the material being drilled. The portion of the matrix layer that comes in contact with the material being cut is known as the cutting face.
  • a cutting tool comprises a fiber-containing (and, in some embodiments, a fiber-reinforced) diamond wire segments or beads.
  • Diamond wire may be used to cut a variety of hard materials. For example, a relatively large diamond wire may be used to cut large blocks of granite out of a granite formation in a quarry for further processing. However, in other uses, a relatively small diamond wire may be used in a laboratory to cut a sample of a hard material for testing.
  • the diamond wires contain a core wire 2 made of any suitable strong material, such as steel, that may be coated with a cutting material coating 4 .
  • the coating 4 in such wires may act as the cutting portion of the diamond wire.
  • the coating 4 may contain a binder (e.g., a copper alloy, iron, silicon carbide, etc.) and a base material that may be formed from steel or a matrix of powdered metal/hard particulate material (e.g., tungsten carbide, tungsten, iron, cobalt, molybdenum, etc.).
  • the coating 4 may also be impregnated with any cutting media 8 , such as diamond crystals.
  • the cutting media 8 in the coating 4 may have any desired characteristic, including any size, shape, alignment, grain, quality, grit, concentration, disbursement, and so forth.
  • the coating 4 of the diamond wire may be made of one or more layers.
  • each layer may be made of any desired material.
  • the backing layer may contain an iron alloy and the bond between the matrix and backing layer is usually achieved with a copper alloy or braze alloy.
  • FIG. 3 illustrates another example of a fiber-containing diamond wire.
  • the diamond wires may have abrasive beads that are applied to a core portions on the diamond wire.
  • the abrasive beads may be formed from any suitable material.
  • the abrasive beads may have a diamond matrix 27 formed of a base material, like powdered metal or a hard particulate material (e.g., tungsten carbide, tungsten, cobalt, molybdenum, etc.).
  • the base material may be infiltrated with a binding material (e.g., a copper alloy).
  • the abrasive beads may be impregnated with any cutting media (e.g., diamond crystals) having any desired characteristic, including any size, shape, alignment, grain, quality, grit, concentration, disbursement, and the like.
  • FIG. 4 illustrates an individual diamond wire bead 26 that is used with the diamond wire shown in FIG. 3 .
  • the bead 26 may be of any shape and size known in the art and may be applied to the core wire in any manner known in the art.
  • the diamond wire in FIG. 3 may be made by manufacturing the bead 26 to contain a coating 34 with abrasive particles 38 and fibers 36 and a channel 32 .
  • the bead 26 may then be attached to a steel ferrule, which may be threaded onto the core wire. Therefore, the beads 26 on the diamond wire may be manufactured separately from the core wire and then strung on the core wire with other beads to create the diamond wire.
  • An encapsulant usually a rubber 25 or some other polymeric material, can be coated on the core wire between the beads as known in the art to create the diamond wire.
  • the diamond wires may also be any size and may therefore be used in any known process using diamond wire.
  • the diamond wire in FIG. 3 may range in length from about 5 meters to more than 100 meters and have beads 26 with a diameter of from about 4 millimeters to about 12 millimeters.
  • the length can be about 10 centimeters long and the diameter of the core wire and cutting material coating can be about a few microns.
  • the diamond wire can be longer or shorter than the lengths in the previous examples and may also have beads and a cable of any desired diameter.
  • the diamond-impregnated cutting tools may have any additional feature known in the art.
  • a core sampling drill bit may have additional gauge protection, hard-strip deposits, various bit profiles, and combinations thereof.
  • Protector gauges on or in a drill bit may be included to reduce the damage to the drill bit and well casing as the drill bit cuts the formation.
  • the core sampling drill bit may have hard-metal strips applied that may prevent the premature erosion of the support portion of the drill bit.
  • the cutting portion(s) of the diamond-impregnated cutting tools contain fibers. Any known fiber, or combination of fibers, may be added to the cutting tool.
  • the cutting portion of a diamond-impregnated cutting tool may include fibers such as carbon fibers, metal fibers (e.g., fibers made of tungsten, tungsten carbide, iron, molybdenum, cobalt, or combinations thereof), glass fibers, polymeric fibers (e.g., fibers made of Kevlar), ceramic fibers (e.g., fibers made of silicon carbide), coated fibers, and/or the like.
  • exemplary metal fibers can comprise steel alloys such as, without limitation, carbon steel (low/mild/high alloy), ferroalloys, cast iron alloys, pig iron alloys, chromoly steel alloys, high-speed steel alloys, stainless steel alloys, tool steel alloys, and the like.
  • steel alloys such as, without limitation, carbon steel (low/mild/high alloy), ferroalloys, cast iron alloys, pig iron alloys, chromoly steel alloys, high-speed steel alloys, stainless steel alloys, tool steel alloys, and the like.
  • the exemplary steel fiber can have a 0.1 mm diameter ⁇ 1.7 mm length and can comprise medium carbon low-alloy steel.
  • the exemplary steel fiber can be sized between about 0.004 mm to about 15 mm in diameter and between about 0.05 mm to about 75 mm in length.
  • the exemplary steel fiber can be sized between about 0.008 mm to about 10 mm in diameter and between about 0.1 mm to about 50 mm in length.
  • the typical composition of the steel metal fiber can comprise at least one or more of: Aluminum (between about 0.95% to about 1.3%); Bismuth (0.01% to about 0.15%); Carbon (between about 0.05% to about 2.1%); Chromium (between about 0.5% to about 18.0%); Copper (between about 0.1% to about 0.4%); Lead (0.01% to about 0.15%); Manganese (between about 0.25% to about 18.0%); Molybdenum (between about 0.2% to about 5.0%); Nickel (between about 2.0% to about 20.0%); Silicon (between about 0.2% to about 2.0%); Sulfur (between about 0.08% to about 0.15%); Titanium (0.01% to about 0.15%); Tungsten (0.01% to about 3.0%); Vanadium (0.01% to about 0.15%) and Iron.
  • Aluminum between about 0.95% to about 1.3%
  • Bismuth 0.01% to about 0.15%
  • Carbon between about 0.05% to about 2.1%
  • Chromium between about 0.5% to about 18.0%
  • Copper between about 0.1% to about 0.4%
  • the metal fibers can comprise one or more of alloys selected from titanium and titanium alloys, cobalt and cobalt alloys, nickel and nickel alloys, manganese and manganese alloys, chromium and chromium alloys, and the like.
  • the coating materials described herein can comprise can comprise one or more of alloys selected from titanium and titanium alloys, cobalt and cobalt alloys, copper and copper alloys, nickel and nickel alloys, manganese and manganese alloys, chromium and chromium alloys, tin and tin alloys, tungsten and tungsten alloys, and zinc and zinc alloys.
  • the cutting portion of a diamond-impregnated cutting tool may contain any carbon fibers. Any known type of carbon fiber may be included in the cutting portion of a diamond-impregnated cutting tool.
  • the fibers may optionally be coated with one or more additional material(s) before being included in the cutting tool.
  • Such coatings may be used for any performance-enhancing purpose.
  • a fiber coating may be used to help retain fibers in the cutting tool.
  • a fiber coating may be used to increase lubricity near the cutting face of a cutting tool as the fiber coating erodes away and forms a fine particulate material that acts to reduce friction.
  • a fiber coating may act as an abrasive material and thereby be used to aid in the cutting process.
  • any known material may be used to coat the type of fiber(s) that is used in the cutting tool.
  • any desired metal, ceramic, polymer, glass, sizing, wetting agent, flux, or other substance could be used to coat a desired type of fiber(s) that may be included in a cutting tool.
  • carbon fibers could be coated with a metal, such as iron, titanium, nickel, copper, molybdenum, lead, tungsten, aluminum, chromium, tungsten, copper, tin, zinc or combinations thereof.
  • carbon fibers may be coated with a ceramic material, such as SiC, SiO, Si02, or the like.
  • the coating material may cover any portion of the fibers and may be of any desired thickness. Accordingly, a coating material may be applied to the fibers in any manner known in the art. For example, the coating may be applied to fibers through spraying, brushing, electroplating, immersion, vapor deposition, or chemical vapor deposition.
  • the fibers in the cutting portion of a diamond-impregnated cutting tool may be of any size or combination of sizes, including mixtures of different sizes.
  • fibers may be of any length and have any desired diameter.
  • the fibers may be approximately 10 to about 25,000 microns long and may have a diameter of approximately 1 to about 500 microns.
  • the fibers may be approximately 150 microns in length and may have a diameter of approximately 7 microns.
  • the fibers may be of any shape or combination of shapes.
  • the fibers may be ribbon-like, cylindrical, polygonal, elliptical, straight, curved, curly, coiled, bent at angles, etc.
  • FIG. 2 illustrates that in some embodiments, the majority of the fibers 6 may be curved. In other embodiments, such as when the cutting tool comprises a core sampling drill bit, the fibers have a substantially cylindrical shape.
  • the fibers may also be of any type or combination of types.
  • the types of fibers include chopped, milled, braided, woven, grouped and wound, or tows.
  • the fibers can contain a mixture of chopped and milled fibers.
  • a diamond-impregnated cutting tool contains one type of fiber.
  • the cutting tool may contain multiple types of fibers. In such instances, where a cutting tool contains more than one type of fiber, any combination of fiber type, quality, size, shape, grade, coating, and/or fiber with any other characteristic may be used.
  • the fibers may be found in any desired concentration in the cutting tool.
  • the cutting portion of a cutting tool may have a very high concentration of fibers, a very low concentration of fibers, or any concentration in between.
  • the cutting tool may contain fibers ranging from about 0.1 to about 70 vol %. In other embodiments, the cutting tool may contain fibers ranging from about 0.1 to about 30 vol %.
  • a first portion of the cutting tool may have a first concentration of a particular type of reinforcing fiber and another portion may have a different concentration (either lower or higher) of the same or another type of reinforcing fiber.
  • fibers may be homogenously dispersed throughout the cutting portion of a cutting tool.
  • the concentration of fibers may vary throughout any desired portion of a cutting tool, as desired. Indeed, any desired variation of the concentration of fibers may be implemented in a cutting tool.
  • the cutting tool comprises a core sampling drill bit
  • it may contain a gradient of fibers.
  • the portion of the matrix layer that is closest to the cutting face of the drill bit may contain a first concentration of fibers and the concentration of fibers could gradually decrease or increase towards the backing layer.
  • Such a drill bit may be used to drill a formation that begins with a soft, abrasive, unconsolidated formation, which gradually shifts to a hard, non-consolidated formation.
  • the dispersal of the fibers in the drill bit can be customized to the desired earth formation through which it will be drilling.
  • the fiber concentration may also vary in any desired manner in the cutting tool.
  • a cutting tool may comprise sections, strips, spots, rings, or any other formation that contains a different concentration or mixture of fiber reinforcements than other parts of the cutting tool.
  • the cutting portion of a drill bit may comprise multiple layers, rings, or segments of matrix layer containing fibers. Each ring, layer, or segment of the drill bit may have a roughly homogenous (or heterogeneous) concentration of fibers throughout the entire ring, layer or segment. Yet the concentration of fibers may vary from ring to ring (or from segment to segment, etc. . . . ).
  • the various rings of differing fiber gradients may be arranged in any order, may contain different fibers or combinations of fibers, and may be of any desired thickness.
  • the outer and inner surfaces of a drill bit could be provided with a different concentration of fibers than the inner parts of the drill bit.
  • the fibers may be located in the cutting portion of a cutting tool in any desired orientation or alignment. In some embodiments, the fibers may run roughly parallel to each other in any desired direction. However, FIGS. 2 and 4 illustrate that, in other embodiments, the fibers may be randomly configured and may thereby be oriented in practically any and/or every direction.
  • the diamond-impregnated cutting tools with fibers can be made using any known method that provides them with the features described above.
  • the drill bit described above can be made in the following exemplary manner.
  • the first section of the drill bit can be made with any known method.
  • the fibers can be incorporated into the drill bit using any method that provides the desired fibers in the desired location with the desired concentration.
  • the fibers may be mixed in with the powdered metal that is used to make the crown of the drill bit. This mixture may then be sintered and/or infiltrated with a binder.
  • the fibers may be incorporated by just placing them into the mold that is used to make the crown of the drill bit.
  • the first section of the drill bit can then be connected to the second section using any method known in the art.
  • the first section may be present in the mold that is used to form the second section of the drill bit and the two ends of the body may be fused together.
  • the first and second sections can be mated in a secondary process such as by brazing, welding, or adhesive bonding.
  • the diamond-impregnated cutting tools with fibers may be used for any purpose known in the art, which depends on the type of cutting tool.
  • a diamond-impregnated core sampling drill bit may be attached to the end of a drill string, which is in turn connected to a drilling rig. As the drill string and therefore the drill bit is rotated and pushed by the drill bit, it grinds away the materials in the subterranean formations that are being drilled. The core samples that are drilled away are withdrawn from the drill string. The cutting portion of the drill bit will erode over time because of the grinding action. This process may continue until the cutting portion of a drill bit has been consumed and the drilling string need be tripped out of the borehole and the drill bit replaced.
  • the described fibers give diamond-impregnated cutting tools several added advantages when compared to conventional cutting tools that lack fibers.
  • the addition of the fibers can control the tensile strength and the erosion rate of the cutting tool, whether to strengthen or weaken these properties.
  • the presence of the fibers can be used to modify the amount of voids in the cutting portion of the tools.
  • modifying the amount of the fibers can be used to tailor the tensile strength and the erosion rate to the amount needed for the particular end use of the cutting tool. This increased tensile strength can also increase the life of a cutting tool, allowing the cutting portion of the tools to wear at a desired pace and improving the rate at which the tool cuts.
  • the addition of fibers may also weaken the structure of the cutting portion and allow higher modulus binders to be used for the cutting tools, but at a lower cost.
  • the amount of fibers in the cutting portion can be tailored to retain the diamonds in the cutting portion for the desired length of time.
  • a third advantage is that the fibers may also act as abrasive cutting media that aid in the cutting process.
  • a fourth advantage is that as the fibers in the cutting portion erode away, their fine particulate matter can reduce friction and increase the lubrication at the interface between the cutting portion and the surface being cut, allowing easier cutting and better flushing. This increased lubrication may also reduce the amount of cutting lubricants (such as drilling muds, polymers, bentonites, etc. . . . ) that are needed, reducing the costs as well as the environmental impact that can be associated with using diamond-impregnated cutting tools.
  • cutting lubricants such as drilling muds, polymers, bentonites, etc. . . .
  • Penetration Rate The average penetration rates of the first set of drill bits ranged from about 30 to about 40 meters per shift. Nevertheless, with the second set of fiber-reinforced bits, the drillers consistently achieved about 50 meters per shift. This equates to an increase in penetration rate of about 25% to about 67%.
  • Bit life The average bit life of the first set of drill bits was 64 meters. Conversely, the average bit life of the second set of drill bits was about 104 meters. This equates to an increase in bit life of about 60%.

Abstract

Fibers for diamond-impregnated cutting tools and their associated methods for manufacture and use are described. A matrix is formed that contains fibers made from carbon, glass, ceramic, polymer, and the like. The matrix is then sintered to form a cutting portion of a drill bit. The type and concentration of the fibers can be modified to control the tensile strength and the erosion rate of the matrix to optimize the cutting performance of the tools. Additionally, the fibers may be added to the cutting section to weaken the structure and allow higher modulus binders to be used for the cutting tools at a lower cost, allowing the amount of fibers to be tailored to retain the diamonds in the cutting portion for the desired amount. As the cutting portion erodes, the fibers may also increase the lubricity at the face of the cutting portion.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS
This patent application is a continuation-in-part of U.S. patent application Ser. No. 13/477,989, filed May 22, 2012, now U.S. Pat. No. 8,783,381, which is a continuation application of U.S. patent application Ser. No. 12/276,903, filed Nov. 24, 2008, now U.S. Pat. No. 8,191,445, entitled “Methods of Forming and Using Fiber-Containing Diamond-Impregnated Cutting Tools,” which is a divisional application of U.S. patent application Ser. No. 11/948,185, now U.S. Pat. No. 7,695,542, filed on Nov. 30, 2007, entitled “Fiber-Containing Diamond-Impregnated Cutting Tools,” which claims priority to and the benefit of U.S. Provisional Application Ser. No. 60/917,016, filed May 9, 2007, entitled “Fiber-Reinforced Diamond Wire,” and U.S. Provisional Application Ser. No. 60/867,882, filed Nov. 30, 2006, entitled “Fiber-Reinforced Core Drill Bit.” The contents of each of the three above-referenced applications are hereby incorporated by reference in their entirety.
BACKGROUND OF THE INVENTION
The Field of the Invention
This application relates generally to cutting tools and their methods of use. In particular, this application relates to diamond-impregnated cutting tools that may contain fibers.
Discussion of the Relevant Art
Cutting tools can be impregnated with diamonds so that they can be used to grind, polish, or otherwise cut a variety of materials that normal cutting tools cannot. The part of these tools that performs the cutting action (or the cutting portion of the tool) is generally formed of a matrix that contains a powdered metal or a hard particulate material, such as tungsten carbide. This material is sometimes infiltrated with a binder, such as a copper alloy. Finally, the cutting portion of these tools is impregnated with diamond crystals or some other form of abrasive cutting media. As the tool grinds and cuts the desired materials, the cutting portion of the tool erodes and exposes new layers of the diamond crystal (or other cutting media) so that a sharp surface is always available for the cutting process. Any diamond-impregnated cutting tool may continue to cut efficiently until the diamond impregnated portion of the tool is completely consumed. At that point, the tool becomes dull and must be replaced with another one.
In some cases, diamond-impregnated cutting tools may be expensive and their replacement may be time consuming, costly, as well as dangerous. For example, the replacement of a diamond-impregnated core sampling drill bit requires removing (or tripping out) the entire drill string out of the hole that has been drilled (the borehole). Each section of the drill rod must be sequentially removed from the borehole. Once the drill bit is replaced, the entire drill string must be assembled section by section and then tripped back into the borehole. Depending on the depth of the hole and the characteristics of the materials being drilled, this process may need to be repeated multiple times for a single borehole.
As well, conventional diamond-impregnated cutting tools often have several characteristics that can add to the consumption rate of the cutting portion and, therefore, increase the operating costs associated with those cutting tools. First, the binder materials in the tools may be relatively soft in comparison to the cutting media. Accordingly, the cutting portion may erode and allow diamonds or other abrasive cutting materials to slough off prematurely. Second, the erosion rate of the cutting portion can be increased by insufficient lubrication to and around the cutting face of the tool, or the interface between the cutting portion of the tool and the material being cut. Third, conventional impregnated cutting tools may also be too wear resistant to expose and renew layers of the cutting portion.
SUMMARY
This application describes diamond-impregnated cutting tools and their associated methods for manufacture and use. The cutting tools contain a diamond-impregnated cutting portion that may contain fibers made from carbon, glass, ceramic, polymer, and the like. The fibers can be in any form, including chopped and milled fibers. The fibers may also be coated with metal, ceramic, or other performance-enhancing coatings. The fibers may be used to both control the tensile strength control the erosion rate of the matrix in the cutting portion to optimize the cutting performance of the tools. Additionally, the fibers may also weaken the structure and allow higher modulus binders to be used for the cutting tools at a lower cost, allowing the amount of fibers to be tailored to retain the diamonds in the cutting portion for the desired amount of time. And as the cutting portion erodes, the fibers may also increase the lubricity at the face of the cutting portion. Using the fibers allows the cutting tools to last longer and make them safer and more economical because they need to be replaced less often.
Additional advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The advantages of the invention will be realized and attained by means of the elements and combinations particularly pointed out in the appended claims. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
BRIEF DESCRIPTION OF THE DRAWINGS
The following description can be better understood in light of the Figures, in which:
FIG. 1 contains an exemplary view of a core sampling drill bit;
FIG. 2 contains an exemplary view of a cross section of a diamond wire;
FIG. 3 contains an exemplary view of a cross section of another diamond wire; and
FIG. 4 contains an exemplary view of a cross section of an individual diamond wire bead.
Together with the following description, the Figures may help demonstrate and explain the principles of the invention and methods for using the invention. In the Figures, the thickness and configuration of components may be exaggerated for clarity. The same reference numerals in different Figures represent the same component.
DETAILED DESCRIPTION
The present invention may be understood more readily by reference to the following detailed description, examples, drawings, and claims, and their previous and following description. However, before the present devices, systems, and/or methods are disclosed and described, it is to be understood that this invention is not limited to the specific devices, systems, and/or methods disclosed unless otherwise specified, as such can, of course, vary. It is also to be understood that the terminology used herein is for the purpose of describing particular aspects only and is not intended to be limiting.
The following description of the invention is provided as an enabling teaching of the invention in its best, currently known embodiment. To this end, those skilled in the relevant art will recognize and appreciate that many changes can be made to the various aspects of the invention described herein, while still obtaining the beneficial results of the present invention. It will also be apparent that some of the desired benefits of the present invention can be obtained by selecting some of the features of the present invention without utilizing other features. Accordingly, those who work in the art will recognize that many modifications and adaptations to the present invention are possible and can even be desirable in certain circumstances and are a part of the present invention. Thus, the following description is provided as illustrative of the principles of the present invention and not in limitation thereof.
As used throughout, the singular forms “a,” “an” and “the” include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to “a fiber” can include two or more such fibers unless the context indicates otherwise.
Ranges can be expressed herein as from “about” one particular value, and/or to “about” another particular value. When such a range is expressed, another aspect includes from the one particular value and/or to the other particular value. Similarly, when values are expressed as approximations, by use of the antecedent “about,” it will be understood that the particular value forms another aspect. It will be further understood that the endpoints of each of the ranges are significant both in relation to the other endpoint, and independently of the other endpoint.
As used herein, the terms “optional” or “optionally” mean that the subsequently described event or circumstance may or may not occur, and that the description includes instances where said event or circumstance occurs and instances where it does not.
The cutting tools described herein can be used to cut stone, subterranean mineral formations, ceramics, asphalt, concrete, and other hard materials. These cutting tools may include core sampling drill bits, drag-type drill bits, roller cone drill bits, diamond wire, grinding cups, diamond blades, tuck pointers, crack chasers, and the like. For example, the cutting tools may be any type of earth drill bit (i.e., core sampling drill bit, drag drill bit, roller cone bit, navi-drill, full hole drill, hole saw, hole opener, etc.), diamond saw blade (e.g., laser welded blade, concave diamond blade, segmented blade, continuous rim blade, wavy core blade, ventilated core blade, etc.), grinding cup (e.g., single row cup, double row cup, grinding cup with T-shaped segments, etc.), tuck pointer (e.g., triple row, etc.), crack chaser, polishing disk, and so forth. In some embodiments, though, the cutting tools are core sampling drill bits and diamond wire.
The part of the cutting tools that performs the cutting action (or the cutting portion of the tool) contains a matrix with a powdered metal or a hard particulate material, such as tungsten carbide or any other super-abrasive material. This material can sometimes be infiltrated with a binder, such as a copper alloy or a substantial equivalent, and can be sintered to form a segment. The cutting portion of these tools can also be impregnated with diamonds, or some other form of abrasive cutting media, and mixed (and, in some embodiments, reinforced) with fibrous materials (or fibers) as described in detail in the embodiments where the cutting tool is a core sampling drill bit and a diamond wire.
FIG. 1 illustrates one example of a fiber-containing cutting tool, a fiber-containing (and, in some embodiments, fiber-reinforced) core sampling drill bit. As shown in FIG. 1, the drill bit 20 contains a first section 21 that connects to the rest of the drill string. The drill bit 20 also contains a second section 22 that is used to cut the desired materials during the drilling process. The body of the drill bit 20 has an outer surface and an inner surface containing a hollow portion therein. With this configuration, pieces of the material being drilled can pass through the hollow portion, up into a drill string to which the drill bit is connected, and then be collected.
The drill bit 20 may be any size, and may therefore be used to collect core samples of any size. While the drill bit may have any circumference and may be used to remove and collect core samples with any desired diameter, the diameter generally ranges from about 1 to about 12 inches. As well, while the kerf of the drill bit (the radius of the outer surface minus the radius of the inner surface) may be any width, it generally ranges from about ½ of an inch to about 6 inches.
The first section 21 of the drill bit may be made of any suitable material known in the art. In some embodiments, the first section may be made of steel or a matrix casting of a hard particulate material in a binder. In some embodiments, the first section 21 may contain a chuck end, sometimes called a blank, bit body, or shank, that may be used for any purpose, including connecting the drill bit to the nearest part of the drill string. Thus, the chuck end can be configured as known in the art to connect the drill bit 20 to any desired part of the drill string.
The second section 22 of the core sampling drill bit 20 contains a cutting portion with cutting elements 12 having a cutting face 14. The cutting elements 12 have a space 16 between them so that, as known in the art, a drilling fluid following the path shown by the arrow may be used during drilling. The cutting portion of the core sampling drill bit, often called the crown, may be constructed of any material(s) known in the art. This type of drill bit (a core sampling bit) is generally formed of steel or a matrix of powdered metal, which is a hard particulate material, such as tungsten carbide, tungsten, iron, cobalt, and/or molybdenum. This material may then be infiltrated with a binder, such as a copper alloy, zinc, silver, molybdenum, nickel, cobalt, or a substantial equivalent, and/or may be sintered. The cutting portion of the drill bit may also be impregnated with any form or combination of forms of cutting media, such as diamond crystals.
The cutting media used in the drill bit may have any desired characteristic or grain, quality, grit, concentration, etc. In some embodiments, the cutting media may be very small and substantially round in order to leave a smooth finish on the material being cut by the core sampling drill bit. In other embodiments, the cutting media may be larger to cut aggressively into the material being cut.
The cutting media may be contained homogeneously or heterogeneously in the drill bit. As well, the cutting media may be aligned in a particular manner so that the cutting properties of the media are presented in an advantageous position with respect to the cutting portion of the drill bit. Similarly, the cutting media may be contained in the drill bit in a variety of densities as desired for a particular use. For example, large abrasive particles spaced further apart may cut material more quickly than small abrasive particles packed tightly together. But the size, density, and shape of the abrasive particles may be provided in a variety of combinations depending on desired cost and performance of the drill bit.
In some instances, the cutting portion of the drill bit may be made of one or more layers. For example, the cutting portion may contain two layers: a matrix layer that performs the cutting operation and a backing layer, which connects the matrix layer to the first section of the drill bit. In these embodiments, the matrix layer contains the actual cutting media that abrades and erodes the material being drilled. The portion of the matrix layer that comes in contact with the material being cut is known as the cutting face.
Another embodiment of a cutting tool comprises a fiber-containing (and, in some embodiments, a fiber-reinforced) diamond wire segments or beads. Diamond wire may be used to cut a variety of hard materials. For example, a relatively large diamond wire may be used to cut large blocks of granite out of a granite formation in a quarry for further processing. However, in other uses, a relatively small diamond wire may be used in a laboratory to cut a sample of a hard material for testing.
One example a diamond wire is shown in FIG. 2. In FIG. 2, the diamond wires contain a core wire 2 made of any suitable strong material, such as steel, that may be coated with a cutting material coating 4. The coating 4 in such wires may act as the cutting portion of the diamond wire. The coating 4 may contain a binder (e.g., a copper alloy, iron, silicon carbide, etc.) and a base material that may be formed from steel or a matrix of powdered metal/hard particulate material (e.g., tungsten carbide, tungsten, iron, cobalt, molybdenum, etc.). The coating 4 may also be impregnated with any cutting media 8, such as diamond crystals. The cutting media 8 in the coating 4 may have any desired characteristic, including any size, shape, alignment, grain, quality, grit, concentration, disbursement, and so forth.
In some instances, the coating 4 of the diamond wire may be made of one or more layers. In such embodiments, each layer may be made of any desired material. For example, the backing layer may contain an iron alloy and the bond between the matrix and backing layer is usually achieved with a copper alloy or braze alloy.
FIG. 3 illustrates another example of a fiber-containing diamond wire. As shown in FIG. 3, the diamond wires may have abrasive beads that are applied to a core portions on the diamond wire. The abrasive beads may be formed from any suitable material. For example, the abrasive beads may have a diamond matrix 27 formed of a base material, like powdered metal or a hard particulate material (e.g., tungsten carbide, tungsten, cobalt, molybdenum, etc.). The base material may be infiltrated with a binding material (e.g., a copper alloy). And the abrasive beads may be impregnated with any cutting media (e.g., diamond crystals) having any desired characteristic, including any size, shape, alignment, grain, quality, grit, concentration, disbursement, and the like.
FIG. 4 illustrates an individual diamond wire bead 26 that is used with the diamond wire shown in FIG. 3. The bead 26 may be of any shape and size known in the art and may be applied to the core wire in any manner known in the art. The diamond wire in FIG. 3, for example, may be made by manufacturing the bead 26 to contain a coating 34 with abrasive particles 38 and fibers 36 and a channel 32. In this example, the bead 26 may then be attached to a steel ferrule, which may be threaded onto the core wire. Therefore, the beads 26 on the diamond wire may be manufactured separately from the core wire and then strung on the core wire with other beads to create the diamond wire. An encapsulant, usually a rubber 25 or some other polymeric material, can be coated on the core wire between the beads as known in the art to create the diamond wire.
The diamond wires may also be any size and may therefore be used in any known process using diamond wire. For example, the diamond wire in FIG. 3 may range in length from about 5 meters to more than 100 meters and have beads 26 with a diameter of from about 4 millimeters to about 12 millimeters. And for the diamond wire in FIG. 2, the length can be about 10 centimeters long and the diameter of the core wire and cutting material coating can be about a few microns. Nevertheless, the diamond wire can be longer or shorter than the lengths in the previous examples and may also have beads and a cable of any desired diameter.
In addition to these features, the diamond-impregnated cutting tools—including the core sampling drill bits or diamond wires—may have any additional feature known in the art. For example, a core sampling drill bit may have additional gauge protection, hard-strip deposits, various bit profiles, and combinations thereof. Protector gauges on or in a drill bit may be included to reduce the damage to the drill bit and well casing as the drill bit cuts the formation. Additionally, the core sampling drill bit may have hard-metal strips applied that may prevent the premature erosion of the support portion of the drill bit.
The cutting portion(s) of the diamond-impregnated cutting tools contain fibers. Any known fiber, or combination of fibers, may be added to the cutting tool. In some embodiments, the cutting portion of a diamond-impregnated cutting tool may include fibers such as carbon fibers, metal fibers (e.g., fibers made of tungsten, tungsten carbide, iron, molybdenum, cobalt, or combinations thereof), glass fibers, polymeric fibers (e.g., fibers made of Kevlar), ceramic fibers (e.g., fibers made of silicon carbide), coated fibers, and/or the like.
For example, and with limitation, it is contemplated that exemplary metal fibers can comprise steel alloys such as, without limitation, carbon steel (low/mild/high alloy), ferroalloys, cast iron alloys, pig iron alloys, chromoly steel alloys, high-speed steel alloys, stainless steel alloys, tool steel alloys, and the like.
In one exemplary aspect, the exemplary steel fiber can have a 0.1 mm diameter×1.7 mm length and can comprise medium carbon low-alloy steel. Optionally, the exemplary steel fiber can be sized between about 0.004 mm to about 15 mm in diameter and between about 0.05 mm to about 75 mm in length. In a further aspect, the exemplary steel fiber can be sized between about 0.008 mm to about 10 mm in diameter and between about 0.1 mm to about 50 mm in length.
In a further aspect, it is contemplated that the typical composition of the steel metal fiber can comprise at least one or more of: Aluminum (between about 0.95% to about 1.3%); Bismuth (0.01% to about 0.15%); Carbon (between about 0.05% to about 2.1%); Chromium (between about 0.5% to about 18.0%); Copper (between about 0.1% to about 0.4%); Lead (0.01% to about 0.15%); Manganese (between about 0.25% to about 18.0%); Molybdenum (between about 0.2% to about 5.0%); Nickel (between about 2.0% to about 20.0%); Silicon (between about 0.2% to about 2.0%); Sulfur (between about 0.08% to about 0.15%); Titanium (0.01% to about 0.15%); Tungsten (0.01% to about 3.0%); Vanadium (0.01% to about 0.15%) and Iron.
Optionally, it is contemplated that the metal fibers can comprise one or more of alloys selected from titanium and titanium alloys, cobalt and cobalt alloys, nickel and nickel alloys, manganese and manganese alloys, chromium and chromium alloys, and the like. In a further aspect, the coating materials described herein can comprise can comprise one or more of alloys selected from titanium and titanium alloys, cobalt and cobalt alloys, copper and copper alloys, nickel and nickel alloys, manganese and manganese alloys, chromium and chromium alloys, tin and tin alloys, tungsten and tungsten alloys, and zinc and zinc alloys.
In some embodiments, the cutting portion of a diamond-impregnated cutting tool may contain any carbon fibers. Any known type of carbon fiber may be included in the cutting portion of a diamond-impregnated cutting tool.
In some embodiments, the fibers may optionally be coated with one or more additional material(s) before being included in the cutting tool. Such coatings may be used for any performance-enhancing purpose. For example, a fiber coating may be used to help retain fibers in the cutting tool. In another example, a fiber coating may be used to increase lubricity near the cutting face of a cutting tool as the fiber coating erodes away and forms a fine particulate material that acts to reduce friction. In yet another example, a fiber coating may act as an abrasive material and thereby be used to aid in the cutting process.
Any known material may be used to coat the type of fiber(s) that is used in the cutting tool. For example, any desired metal, ceramic, polymer, glass, sizing, wetting agent, flux, or other substance could be used to coat a desired type of fiber(s) that may be included in a cutting tool. In one example, carbon fibers could be coated with a metal, such as iron, titanium, nickel, copper, molybdenum, lead, tungsten, aluminum, chromium, tungsten, copper, tin, zinc or combinations thereof. In another example, carbon fibers may be coated with a ceramic material, such as SiC, SiO, Si02, or the like.
Where fibers are coated with one or more coatings, the coating material may cover any portion of the fibers and may be of any desired thickness. Accordingly, a coating material may be applied to the fibers in any manner known in the art. For example, the coating may be applied to fibers through spraying, brushing, electroplating, immersion, vapor deposition, or chemical vapor deposition.
The fibers in the cutting portion of a diamond-impregnated cutting tool, such as a core sampling drill bit, may be of any size or combination of sizes, including mixtures of different sizes. For instance, fibers may be of any length and have any desired diameter. In some embodiments, the fibers may be approximately 10 to about 25,000 microns long and may have a diameter of approximately 1 to about 500 microns. In other embodiments, the fibers may be approximately 150 microns in length and may have a diameter of approximately 7 microns.
The fibers may be of any shape or combination of shapes. The fibers may be ribbon-like, cylindrical, polygonal, elliptical, straight, curved, curly, coiled, bent at angles, etc. For instance, FIG. 2 illustrates that in some embodiments, the majority of the fibers 6 may be curved. In other embodiments, such as when the cutting tool comprises a core sampling drill bit, the fibers have a substantially cylindrical shape.
Additionally, the fibers may also be of any type or combination of types. Examples of the types of fibers include chopped, milled, braided, woven, grouped and wound, or tows. In some embodiments, such as when the cutting tool comprises a core sampling drill bit, the fibers can contain a mixture of chopped and milled fibers. In some embodiments, a diamond-impregnated cutting tool contains one type of fiber. In other embodiments, though, the cutting tool may contain multiple types of fibers. In such instances, where a cutting tool contains more than one type of fiber, any combination of fiber type, quality, size, shape, grade, coating, and/or fiber with any other characteristic may be used.
The fibers may be found in any desired concentration in the cutting tool. For instance, the cutting portion of a cutting tool may have a very high concentration of fibers, a very low concentration of fibers, or any concentration in between. In some embodiments, the cutting tool may contain fibers ranging from about 0.1 to about 70 vol %. In other embodiments, the cutting tool may contain fibers ranging from about 0.1 to about 30 vol %. A first portion of the cutting tool may have a first concentration of a particular type of reinforcing fiber and another portion may have a different concentration (either lower or higher) of the same or another type of reinforcing fiber.
In some embodiments, fibers may be homogenously dispersed throughout the cutting portion of a cutting tool. In other embodiments, though, the concentration of fibers may vary throughout any desired portion of a cutting tool, as desired. Indeed, any desired variation of the concentration of fibers may be implemented in a cutting tool. For example, where the cutting tool comprises a core sampling drill bit, it may contain a gradient of fibers. In this example, the portion of the matrix layer that is closest to the cutting face of the drill bit may contain a first concentration of fibers and the concentration of fibers could gradually decrease or increase towards the backing layer. Such a drill bit may be used to drill a formation that begins with a soft, abrasive, unconsolidated formation, which gradually shifts to a hard, non-consolidated formation. Thus, the dispersal of the fibers in the drill bit can be customized to the desired earth formation through which it will be drilling.
The fiber concentration may also vary in any desired manner in the cutting tool. In other words, a cutting tool may comprise sections, strips, spots, rings, or any other formation that contains a different concentration or mixture of fiber reinforcements than other parts of the cutting tool. For example, the cutting portion of a drill bit may comprise multiple layers, rings, or segments of matrix layer containing fibers. Each ring, layer, or segment of the drill bit may have a roughly homogenous (or heterogeneous) concentration of fibers throughout the entire ring, layer or segment. Yet the concentration of fibers may vary from ring to ring (or from segment to segment, etc. . . . ). And the various rings of differing fiber gradients may be arranged in any order, may contain different fibers or combinations of fibers, and may be of any desired thickness. In another example, the outer and inner surfaces of a drill bit could be provided with a different concentration of fibers than the inner parts of the drill bit.
The fibers may be located in the cutting portion of a cutting tool in any desired orientation or alignment. In some embodiments, the fibers may run roughly parallel to each other in any desired direction. However, FIGS. 2 and 4 illustrate that, in other embodiments, the fibers may be randomly configured and may thereby be oriented in practically any and/or every direction.
The diamond-impregnated cutting tools with fibers can be made using any known method that provides them with the features described above. For example, the drill bit described above can be made in the following exemplary manner. In this example, the first section of the drill bit can be made with any known method. The fibers can be incorporated into the drill bit using any method that provides the desired fibers in the desired location with the desired concentration. For instance, the fibers may be mixed in with the powdered metal that is used to make the crown of the drill bit. This mixture may then be sintered and/or infiltrated with a binder. In other embodiments, though, the fibers may be incorporated by just placing them into the mold that is used to make the crown of the drill bit. The first section of the drill bit can then be connected to the second section using any method known in the art. For example, the first section may be present in the mold that is used to form the second section of the drill bit and the two ends of the body may be fused together. Alternatively, the first and second sections can be mated in a secondary process such as by brazing, welding, or adhesive bonding.
The diamond-impregnated cutting tools with fibers may be used for any purpose known in the art, which depends on the type of cutting tool. For example, a diamond-impregnated core sampling drill bit may be attached to the end of a drill string, which is in turn connected to a drilling rig. As the drill string and therefore the drill bit is rotated and pushed by the drill bit, it grinds away the materials in the subterranean formations that are being drilled. The core samples that are drilled away are withdrawn from the drill string. The cutting portion of the drill bit will erode over time because of the grinding action. This process may continue until the cutting portion of a drill bit has been consumed and the drilling string need be tripped out of the borehole and the drill bit replaced.
The described fibers give diamond-impregnated cutting tools several added advantages when compared to conventional cutting tools that lack fibers. First, the addition of the fibers can control the tensile strength and the erosion rate of the cutting tool, whether to strengthen or weaken these properties. Without being restricted to this understanding, it is believed that the presence of the fibers can be used to modify the amount of voids in the cutting portion of the tools. And since the tensile strength and erosion rate depend on the amount of voids, modifying the amount of the fibers can be used to tailor the tensile strength and the erosion rate to the amount needed for the particular end use of the cutting tool. This increased tensile strength can also increase the life of a cutting tool, allowing the cutting portion of the tools to wear at a desired pace and improving the rate at which the tool cuts.
Second, the addition of fibers may also weaken the structure of the cutting portion and allow higher modulus binders to be used for the cutting tools, but at a lower cost. Thus, the amount of fibers in the cutting portion can be tailored to retain the diamonds in the cutting portion for the desired length of time.
A third advantage is that the fibers may also act as abrasive cutting media that aid in the cutting process. A fourth advantage is that as the fibers in the cutting portion erode away, their fine particulate matter can reduce friction and increase the lubrication at the interface between the cutting portion and the surface being cut, allowing easier cutting and better flushing. This increased lubrication may also reduce the amount of cutting lubricants (such as drilling muds, polymers, bentonites, etc. . . . ) that are needed, reducing the costs as well as the environmental impact that can be associated with using diamond-impregnated cutting tools.
EXAMPLE
In one example of a comparison between a conventional diamond-impregnated cutting tool (one lacking fibers) and a fiber-containing diamond-impregnated cutting tool, two sets of substantially similar drill bits were manufactured. In this comparison, the first set of drill bits contained no fibers and the second set was reinforced with carbon fibers. Each drill bit was then tested and the following properties were measured.
Penetration Rate: The average penetration rates of the first set of drill bits ranged from about 30 to about 40 meters per shift. Nevertheless, with the second set of fiber-reinforced bits, the drillers consistently achieved about 50 meters per shift. This equates to an increase in penetration rate of about 25% to about 67%.
Bit life: The average bit life of the first set of drill bits was 64 meters. Conversely, the average bit life of the second set of drill bits was about 104 meters. This equates to an increase in bit life of about 60%.
In addition to any previously indicated modification, numerous other variations and alternative arrangements may be devised by those skilled in the art without departing from the spirit and scope of the above description, and appended claims are intended above with particularity and detail in connection with what is presently deemed to be the most practical and exemplary embodiments, it will be apparent to those of ordinary in the art that numerous modifications, including, but not limited to, form, functions, manner of operation and use may be made without departing from the principles and concepts set forth herein. Also, as used herein, examples and embodiments are meant to be illustrative only and should not be construed as limiting in any manner.

Claims (20)

What is claimed is:
1. A cutting tool comprising a cutting section, the cutting section comprising:
a matrix of hard particulate material;
a binder infiltrated therein the matrix of hard particulate material;
a plurality of cutting media dispersed within the matrix of hard particulate material; and
a plurality of metal fibers dispersed within the matrix of hard particulate material, wherein the plurality of fibers are about 0.05 mm to about 75 mm long and have a diameter of between about 0.004 mm and about 15 mm.
2. The cutting tool of claim 1, wherein the hard particulate material of the matrix comprises one or more of tungsten carbide, tungsten, iron, cobalt, or molybdenum.
3. The cutting tool of claim 1, wherein the plurality of metal fibers comprises a plurality of steel fibers.
4. The cutting tool of claim 3, wherein the plurality of steel fibers comprises one of more of carbon steel, ferroalloys, cast iron, pig iron, chromoly steel, high-speed steel, stainless steel, tool steel, or alloys thereof.
5. The cutting tool of claim 4, wherein carbon steel comprises one or more of low, medium or high carbon steel or alloys thereof.
6. The cutting tool of claim 3, wherein at least one of the metal fibers has about a 0.1 mm diameter and about a 1.7 mm length.
7. The cutting tool of claim 6, wherein at least one of the metal fibers comprises medium carbon low-alloy steel.
8. The cutting tool of claim 3, wherein at least one of the metal fibers is sized between about 0.008 mm to about 10 mm in diameter and between about 0.1 mm to about 50 mm in length.
9. The cutting tool of claim 3, wherein at least one of the metal fibers comprises medium carbon low-alloy steel.
10. The cutting tool of claim 1, wherein the plurality of metal fibers comprises one or more of titanium, cobalt, nickel, manganese, chromium, or alloys thereof.
11. The cutting tool of claim 1, wherein the binder comprises one or more of copper, zinc, silver, molybdenum, nickel, cobalt, or alloys thereof.
12. The cutting tool of claim 1, wherein the cutting media are disposed homogeneously within the cutting tool.
13. The cutting tool of claim 1, wherein the plurality of cutting media comprises diamond crystals.
14. The cutting tool of claim 1, wherein the plurality of metal fibers are at least partially coated with metal, glass, ceramic, or combinations thereof.
15. The cutting tool of claim 14, wherein the plurality of metal fibers are coated to a desired thickness.
16. The cutting tool of claim 14, wherein the plurality of metal fibers are at least partially coated with one or more of titanium, cobalt, nickel, manganese, chromium, tungsten, copper, zinc, tin or alloys thereof.
17. The cutting tool of claim 1, wherein the cutting tool comprises a drill bit.
18. The cutting tool of claim 17, wherein the cutting tool comprises a core sampling drill bit.
19. The cutting tool of claim 1, wherein the hard particulate material of the matrix comprises tungsten carbide.
20. The cutting tool of claim 1, wherein the binder comprises copper alloy.
US14/229,387 2006-11-30 2014-03-28 Fiber-containing diamond-impregnated cutting tools and methods of forming and using same Active 2028-09-14 US9540883B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US14/229,387 US9540883B2 (en) 2006-11-30 2014-03-28 Fiber-containing diamond-impregnated cutting tools and methods of forming and using same
AU2015235836A AU2015235836A1 (en) 2014-03-28 2015-03-27 Fiber-containing diamond-impregnated cutting tools and methods of forming and using same
PCT/US2015/022965 WO2015148910A1 (en) 2014-03-28 2015-03-27 Fiber-containing diamond-impregnated cutting tools and methods of forming and using same
CA2944197A CA2944197A1 (en) 2014-03-28 2015-03-27 Fiber-containing diamond-impregnated cutting tools and methods of forming and using same
US15/378,992 US20170087693A1 (en) 2006-11-30 2016-12-14 Fiber-containing diamond-impregnated cutting tools and methods of forming and using same

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US86788206P 2006-11-30 2006-11-30
US91701607P 2007-05-09 2007-05-09
US11/948,185 US7695542B2 (en) 2006-11-30 2007-11-30 Fiber-containing diamond-impregnated cutting tools
US12/276,903 US8191445B2 (en) 2006-11-30 2008-11-24 Methods of forming fiber-containing diamond-impregnated cutting tools
US13/477,989 US8783384B2 (en) 2006-11-30 2012-05-22 Fiber-containing diamond-impregnated cutting tools and methods of forming and using same
US14/229,387 US9540883B2 (en) 2006-11-30 2014-03-28 Fiber-containing diamond-impregnated cutting tools and methods of forming and using same

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US13/477,989 Continuation-In-Part US8783384B2 (en) 2006-11-30 2012-05-22 Fiber-containing diamond-impregnated cutting tools and methods of forming and using same

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/378,992 Continuation US20170087693A1 (en) 2006-11-30 2016-12-14 Fiber-containing diamond-impregnated cutting tools and methods of forming and using same

Publications (2)

Publication Number Publication Date
US20140231149A1 US20140231149A1 (en) 2014-08-21
US9540883B2 true US9540883B2 (en) 2017-01-10

Family

ID=51350346

Family Applications (2)

Application Number Title Priority Date Filing Date
US14/229,387 Active 2028-09-14 US9540883B2 (en) 2006-11-30 2014-03-28 Fiber-containing diamond-impregnated cutting tools and methods of forming and using same
US15/378,992 Abandoned US20170087693A1 (en) 2006-11-30 2016-12-14 Fiber-containing diamond-impregnated cutting tools and methods of forming and using same

Family Applications After (1)

Application Number Title Priority Date Filing Date
US15/378,992 Abandoned US20170087693A1 (en) 2006-11-30 2016-12-14 Fiber-containing diamond-impregnated cutting tools and methods of forming and using same

Country Status (1)

Country Link
US (2) US9540883B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180029406A1 (en) * 2015-01-29 2018-02-01 Aros S.R.L. Process for the production of stone material manufactured articles
CN111893405A (en) * 2020-06-23 2020-11-06 西安理工大学 Titanium fiber toughening cold heading die and preparation method thereof

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9267332B2 (en) 2006-11-30 2016-02-23 Longyear Tm, Inc. Impregnated drilling tools including elongated structures
CA2671193C (en) 2006-11-30 2012-04-24 Kristian Drivdahl Fiber-containing diamond-impregnated cutting tools
DE102013110728B4 (en) * 2013-09-27 2021-08-19 Ev Group E. Thallner Gmbh System and method for machining a workpiece
AT16111U1 (en) * 2017-11-15 2019-01-15 Ceratizit Luxembourg S A R L cutting tool
CN108789188A (en) * 2018-07-10 2018-11-13 东北大学 A kind of ultrahard diamond grinding wheel and preparation method thereof
CN108818329B (en) * 2018-07-10 2020-11-03 东北大学 Diamond grinding wheel and preparation method thereof
CN109877718A (en) * 2019-04-02 2019-06-14 东北大学 A kind of metal-base diamond grinding wheel and its manufacturing method
CN113913645B (en) * 2020-07-07 2022-07-22 中国石油化工股份有限公司 Composition and impregnated block wear part prepared from same

Citations (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1041568A (en) 1911-05-19 1912-10-15 Franz Bade Diamond drill.
US1939991A (en) 1931-12-17 1933-12-19 Hard Metal Alloys Inc Diamond cutting tool or the like and method of making the same
US2147843A (en) 1938-03-18 1939-02-21 R S Patrick Duluth Method of casting diamond core drill bits
US2326908A (en) 1942-05-29 1943-08-17 Jr Edward B Williams Drill bit
US2371488A (en) 1943-05-06 1945-03-13 Howard C Grubb Core bit
US2495400A (en) 1946-06-03 1950-01-24 Jr Edward B Williams Core bit
US2552485A (en) 1947-01-23 1951-05-08 Carborundum Co Abrasive tool comprising bonded abrasive element cemented to supporting element
US2811960A (en) 1957-02-26 1957-11-05 Fessel Paul Abrasive cutting body
US3215215A (en) 1962-08-27 1965-11-02 Exxon Production Research Co Diamond bit
US3537538A (en) 1969-05-21 1970-11-03 Christensen Diamond Prod Co Impregnated diamond bit
US3972161A (en) 1968-07-01 1976-08-03 Barnes Drill Co. Solid abrading tool with fiber abrasive
US4128136A (en) 1977-12-09 1978-12-05 Lamage Limited Drill bit
US4186628A (en) 1976-11-30 1980-02-05 General Electric Company Rotary drill bit and method for making same
US4189015A (en) 1978-08-21 1980-02-19 Acker Drill Company, Inc. Drill bits for obtaining core samples
US4190126A (en) 1976-12-28 1980-02-26 Tokiwa Industrial Co., Ltd. Rotary abrasive drilling bit
US4208154A (en) 1978-03-21 1980-06-17 Gundy William P Core drill
US4211294A (en) 1978-04-21 1980-07-08 Acker Drill Company, Inc. Impregnated diamond drill bit
US4452325A (en) 1982-09-27 1984-06-05 Conoco Inc. Composite structure for cutting tools
US4499959A (en) 1983-03-14 1985-02-19 Christensen, Inc. Tooth configuration for an earth boring bit
US4534773A (en) 1983-01-10 1985-08-13 Cornelius Phaal Abrasive product and method for manufacturing
US4595623A (en) 1984-05-07 1986-06-17 Hughes Aircraft Company Fiber-reinforced syntactic foam composites and method of forming same
US4613287A (en) 1985-01-31 1986-09-23 Hambley Charles C Wave operated energy device
US4681174A (en) 1986-01-16 1987-07-21 Kazakhsky Politekhnichesky Institute Imeni V.I. Lenina Diamond crown bit
US4698010A (en) 1984-09-14 1987-10-06 Marcello Toncelli Process for the formation of blocks of any material by means of the contemporaneous action of vibrations, compression and vacuum intended for cutting into slabs and apparatus adapted to carry out the said process
US4863490A (en) 1988-02-22 1989-09-05 Gte Laboratories Incorporated Titanium diboride-based composite articles with alumina dispersoids, having improved fracture toughness
US5025871A (en) 1989-04-05 1991-06-25 Aulette Stewart Drilling method and rotary drill bit crown
US5052153A (en) 1990-09-06 1991-10-01 Wiand Ronald C Cutting tool with polycrystalline diamond segment and abrasive grit
JPH03243735A (en) 1990-02-22 1991-10-30 Tatsuro Kuratomi Whisker combined diamond sintered body and its manufacture
US5069584A (en) 1989-01-20 1991-12-03 Hilti Aktiengesellschaft Hollow drilling tool
US5092910A (en) 1989-01-30 1992-03-03 Dekok Peter T Abrasive tool and method for making
US5218888A (en) 1989-09-27 1993-06-15 Rotabroach Limited Annular hole cutter
US5435815A (en) 1992-06-30 1995-07-25 Sumitomo Electric Industries, Ltd. Cutting tool employing vapor-deposited polycrystalline diamond for cutting edge and method of manufacturing the same
US5451352A (en) 1992-02-03 1995-09-19 Pcc Composites, Inc. Method of forming a diamond composite structure
US5536485A (en) 1993-08-12 1996-07-16 Agency Of Industrial Science & Technology Diamond sinter, high-pressure phase boron nitride sinter, and processes for producing those sinters
US5644956A (en) 1994-03-31 1997-07-08 Dresser Industries, Inc. Rotary drill bit with improved cutter and method of manufacturing same
US5677372A (en) 1993-04-06 1997-10-14 Sumitomo Electric Industries, Ltd. Diamond reinforced composite material
US5901964A (en) 1997-02-06 1999-05-11 John R. Williams Seal for a longitudinally movable drillstring component
US5932508A (en) 1996-09-04 1999-08-03 Armstrong; Caoimhin Padraig Manufacture of a metal bonded abrasive product
US5996571A (en) 1996-02-01 1999-12-07 Diamond Products Joint Venture Diamond core drill bit
US6063332A (en) 1995-09-25 2000-05-16 Sintokogio, Ltd. Heat resisting metal fiber sintered body
US6084052A (en) 1998-02-19 2000-07-04 Schlumberger Technology Corporation Use of polyaryletherketone-type thermoplastics in downhole tools
US6273924B1 (en) 1997-01-30 2001-08-14 Deutsches Zentrum Fuer Luft-Und Raumfahrt Tool for machining workpieces by cutting
US20020020564A1 (en) 1997-07-31 2002-02-21 Zhigang Fang Composite constructions with ordered microstructure
US6390890B1 (en) 1999-02-06 2002-05-21 Charles J Molnar Finishing semiconductor wafers with a fixed abrasive finishing element
US6394192B1 (en) 1997-08-15 2002-05-28 Benthic Geotech Pty Ltd Methods for seabed piston coring
US6399737B1 (en) 2001-09-21 2002-06-04 General Electric Company EMI-shielding thermoplastic composition, method for the preparation thereof, and pellets and articles derived therefrom
US6413287B1 (en) 1999-02-17 2002-07-02 3M Innovative Properties Company Method for making an abrasive article and abrasive articles thereof
CN2521373Y (en) 2001-12-21 2002-11-20 长沙矿冶研究院 Impregnated diamond core bit matrix structure
USD466139S1 (en) 2001-11-16 2002-11-26 Ehwa Diamond Industrial Co., Ltd. Core drill
US20030162648A1 (en) 2002-02-26 2003-08-28 Stewart Middlemiss Elongate ultra hard particle reinforced ultra hard materials and ceramics, tools and parts incorporating the same, and method of making the same
JP2003243735A (en) 2002-02-20 2003-08-29 Fujitsu Ltd Tunnel junction device
US20040231245A1 (en) 2002-12-04 2004-11-25 Showa Denko K.K. Composite material and processing method using the material
JP2004358580A (en) 2003-06-02 2004-12-24 Kyocera Corp Cutting tool and its manufacturing method
US20050115743A1 (en) 2003-12-02 2005-06-02 Anthony Griffo Randomly-oriented composite constructions
US20050189647A1 (en) 2002-10-11 2005-09-01 Chien-Min Sung Carbonaceous composite heat spreader and associated methods
US20050247491A1 (en) 2004-04-28 2005-11-10 Mirchandani Prakash K Earth-boring bits
US6997977B2 (en) 2002-07-31 2006-02-14 Donaldson Company, Inc. Adsorptive duct for contaminant removal, and methods
WO2006076795A1 (en) 2005-01-18 2006-07-27 Groupe Fordia Inc Bit for drilling a hole
JP2006255822A (en) 2005-03-16 2006-09-28 Nippon Electric Glass Co Ltd Fiber cutting blade and cutting device equipped therewith
US20060243494A1 (en) 2005-04-28 2006-11-02 Baker Hughes Incorporated Earth boring bit lubricant chamber barrier member with dispersed fibers
US7141086B2 (en) 2002-06-03 2006-11-28 Ricoh Company, Ltd. Abrasive grain and method for producing it, polishing tool and method for producing it, grinding wheel and method for producing it, and polishing apparatus
US20070051455A1 (en) 2005-05-27 2007-03-08 Snecma Process for manufacturing a component with an insert made of a composite consisting of a metal matrix and ceramic fibers
US7243745B2 (en) 2004-07-28 2007-07-17 Baker Hughes Incorporated Cutting elements and rotary drill bits including same
AU2007342231A1 (en) 2006-11-30 2008-07-17 Longyear Tm, Inc. Fiber-containing diamond-impregnated cutting tools
US20080209818A1 (en) 2006-11-14 2008-09-04 Smith International, Inc. Polycrystalline composites reinforced with elongated nanostructures
EP2055890A1 (en) 2003-11-20 2009-05-06 Halliburton Energy Services, Inc. Drill bit having an improved seal
US7802495B2 (en) 2005-11-10 2010-09-28 Baker Hughes Incorporated Methods of forming earth-boring rotary drill bits
US20110067924A1 (en) 2009-09-22 2011-03-24 Longyear Tm, Inc. Impregnated cutting elements with large abrasive cutting media and methods of making and using the same
AU2011226849A1 (en) 2006-11-30 2011-10-13 Longyear Tm, Inc. Fiber-containing diamond-impregnated cutting tools
AU2011226850A1 (en) 2006-11-30 2011-10-13 Longyear Tm, Inc. Fibre-containing diamond-impregnated cutting tools
US20140013675A1 (en) 2012-06-29 2014-01-16 Yinggang Tian Abrasive Article and Method Of Forming
WO2015148910A1 (en) 2014-03-28 2015-10-01 Longyear Tm, Inc. Fiber-containing diamond-impregnated cutting tools and methods of forming and using same

Patent Citations (86)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1041568A (en) 1911-05-19 1912-10-15 Franz Bade Diamond drill.
US1939991A (en) 1931-12-17 1933-12-19 Hard Metal Alloys Inc Diamond cutting tool or the like and method of making the same
US2147843A (en) 1938-03-18 1939-02-21 R S Patrick Duluth Method of casting diamond core drill bits
US2326908A (en) 1942-05-29 1943-08-17 Jr Edward B Williams Drill bit
US2371488A (en) 1943-05-06 1945-03-13 Howard C Grubb Core bit
US2495400A (en) 1946-06-03 1950-01-24 Jr Edward B Williams Core bit
US2552485A (en) 1947-01-23 1951-05-08 Carborundum Co Abrasive tool comprising bonded abrasive element cemented to supporting element
US2811960A (en) 1957-02-26 1957-11-05 Fessel Paul Abrasive cutting body
US3215215A (en) 1962-08-27 1965-11-02 Exxon Production Research Co Diamond bit
US3972161A (en) 1968-07-01 1976-08-03 Barnes Drill Co. Solid abrading tool with fiber abrasive
US3537538A (en) 1969-05-21 1970-11-03 Christensen Diamond Prod Co Impregnated diamond bit
US4186628A (en) 1976-11-30 1980-02-05 General Electric Company Rotary drill bit and method for making same
US4190126A (en) 1976-12-28 1980-02-26 Tokiwa Industrial Co., Ltd. Rotary abrasive drilling bit
US4128136A (en) 1977-12-09 1978-12-05 Lamage Limited Drill bit
US4208154A (en) 1978-03-21 1980-06-17 Gundy William P Core drill
US4211294A (en) 1978-04-21 1980-07-08 Acker Drill Company, Inc. Impregnated diamond drill bit
US4189015A (en) 1978-08-21 1980-02-19 Acker Drill Company, Inc. Drill bits for obtaining core samples
US4452325A (en) 1982-09-27 1984-06-05 Conoco Inc. Composite structure for cutting tools
US4534773A (en) 1983-01-10 1985-08-13 Cornelius Phaal Abrasive product and method for manufacturing
US4499959A (en) 1983-03-14 1985-02-19 Christensen, Inc. Tooth configuration for an earth boring bit
US4595623A (en) 1984-05-07 1986-06-17 Hughes Aircraft Company Fiber-reinforced syntactic foam composites and method of forming same
US4698010A (en) 1984-09-14 1987-10-06 Marcello Toncelli Process for the formation of blocks of any material by means of the contemporaneous action of vibrations, compression and vacuum intended for cutting into slabs and apparatus adapted to carry out the said process
US4613287A (en) 1985-01-31 1986-09-23 Hambley Charles C Wave operated energy device
US4681174A (en) 1986-01-16 1987-07-21 Kazakhsky Politekhnichesky Institute Imeni V.I. Lenina Diamond crown bit
US4863490A (en) 1988-02-22 1989-09-05 Gte Laboratories Incorporated Titanium diboride-based composite articles with alumina dispersoids, having improved fracture toughness
US5069584A (en) 1989-01-20 1991-12-03 Hilti Aktiengesellschaft Hollow drilling tool
US5092910B1 (en) 1989-01-30 1995-09-26 Ultimate Abrasive Syst Inc Abrasive tool
US5092910A (en) 1989-01-30 1992-03-03 Dekok Peter T Abrasive tool and method for making
US5025871A (en) 1989-04-05 1991-06-25 Aulette Stewart Drilling method and rotary drill bit crown
US5218888A (en) 1989-09-27 1993-06-15 Rotabroach Limited Annular hole cutter
JPH03243735A (en) 1990-02-22 1991-10-30 Tatsuro Kuratomi Whisker combined diamond sintered body and its manufacture
US5052153A (en) 1990-09-06 1991-10-01 Wiand Ronald C Cutting tool with polycrystalline diamond segment and abrasive grit
US5451352A (en) 1992-02-03 1995-09-19 Pcc Composites, Inc. Method of forming a diamond composite structure
US5435815A (en) 1992-06-30 1995-07-25 Sumitomo Electric Industries, Ltd. Cutting tool employing vapor-deposited polycrystalline diamond for cutting edge and method of manufacturing the same
US5677372A (en) 1993-04-06 1997-10-14 Sumitomo Electric Industries, Ltd. Diamond reinforced composite material
US5536485A (en) 1993-08-12 1996-07-16 Agency Of Industrial Science & Technology Diamond sinter, high-pressure phase boron nitride sinter, and processes for producing those sinters
US5644956A (en) 1994-03-31 1997-07-08 Dresser Industries, Inc. Rotary drill bit with improved cutter and method of manufacturing same
US6063332A (en) 1995-09-25 2000-05-16 Sintokogio, Ltd. Heat resisting metal fiber sintered body
US5996571A (en) 1996-02-01 1999-12-07 Diamond Products Joint Venture Diamond core drill bit
US5932508A (en) 1996-09-04 1999-08-03 Armstrong; Caoimhin Padraig Manufacture of a metal bonded abrasive product
US6273924B1 (en) 1997-01-30 2001-08-14 Deutsches Zentrum Fuer Luft-Und Raumfahrt Tool for machining workpieces by cutting
US5901964A (en) 1997-02-06 1999-05-11 John R. Williams Seal for a longitudinally movable drillstring component
US20020020564A1 (en) 1997-07-31 2002-02-21 Zhigang Fang Composite constructions with ordered microstructure
US6607835B2 (en) 1997-07-31 2003-08-19 Smith International, Inc. Composite constructions with ordered microstructure
US6394192B1 (en) 1997-08-15 2002-05-28 Benthic Geotech Pty Ltd Methods for seabed piston coring
US6084052A (en) 1998-02-19 2000-07-04 Schlumberger Technology Corporation Use of polyaryletherketone-type thermoplastics in downhole tools
US6390890B1 (en) 1999-02-06 2002-05-21 Charles J Molnar Finishing semiconductor wafers with a fixed abrasive finishing element
US6413287B1 (en) 1999-02-17 2002-07-02 3M Innovative Properties Company Method for making an abrasive article and abrasive articles thereof
US6399737B1 (en) 2001-09-21 2002-06-04 General Electric Company EMI-shielding thermoplastic composition, method for the preparation thereof, and pellets and articles derived therefrom
USD466139S1 (en) 2001-11-16 2002-11-26 Ehwa Diamond Industrial Co., Ltd. Core drill
CN2521373Y (en) 2001-12-21 2002-11-20 长沙矿冶研究院 Impregnated diamond core bit matrix structure
JP2003243735A (en) 2002-02-20 2003-08-29 Fujitsu Ltd Tunnel junction device
US20030162648A1 (en) 2002-02-26 2003-08-28 Stewart Middlemiss Elongate ultra hard particle reinforced ultra hard materials and ceramics, tools and parts incorporating the same, and method of making the same
US7141086B2 (en) 2002-06-03 2006-11-28 Ricoh Company, Ltd. Abrasive grain and method for producing it, polishing tool and method for producing it, grinding wheel and method for producing it, and polishing apparatus
US6997977B2 (en) 2002-07-31 2006-02-14 Donaldson Company, Inc. Adsorptive duct for contaminant removal, and methods
US20050189647A1 (en) 2002-10-11 2005-09-01 Chien-Min Sung Carbonaceous composite heat spreader and associated methods
US20040231245A1 (en) 2002-12-04 2004-11-25 Showa Denko K.K. Composite material and processing method using the material
JP2004358580A (en) 2003-06-02 2004-12-24 Kyocera Corp Cutting tool and its manufacturing method
EP2055890A1 (en) 2003-11-20 2009-05-06 Halliburton Energy Services, Inc. Drill bit having an improved seal
US20050115743A1 (en) 2003-12-02 2005-06-02 Anthony Griffo Randomly-oriented composite constructions
US20050247491A1 (en) 2004-04-28 2005-11-10 Mirchandani Prakash K Earth-boring bits
US7243745B2 (en) 2004-07-28 2007-07-17 Baker Hughes Incorporated Cutting elements and rotary drill bits including same
WO2006076795A1 (en) 2005-01-18 2006-07-27 Groupe Fordia Inc Bit for drilling a hole
US20070131456A1 (en) 2005-01-18 2007-06-14 Paul-Philippe Lapointe Bit for drilling a hole
US20080066969A1 (en) 2005-01-18 2008-03-20 Lapointe Paul-Philippe Bit For Drilling A Hole
US7641004B2 (en) 2005-01-18 2010-01-05 Groupe Fordia Inc. Drill bit
JP2006255822A (en) 2005-03-16 2006-09-28 Nippon Electric Glass Co Ltd Fiber cutting blade and cutting device equipped therewith
US20060243494A1 (en) 2005-04-28 2006-11-02 Baker Hughes Incorporated Earth boring bit lubricant chamber barrier member with dispersed fibers
US20070051455A1 (en) 2005-05-27 2007-03-08 Snecma Process for manufacturing a component with an insert made of a composite consisting of a metal matrix and ceramic fibers
US7802495B2 (en) 2005-11-10 2010-09-28 Baker Hughes Incorporated Methods of forming earth-boring rotary drill bits
US20080209818A1 (en) 2006-11-14 2008-09-04 Smith International, Inc. Polycrystalline composites reinforced with elongated nanostructures
AU2011226850A1 (en) 2006-11-30 2011-10-13 Longyear Tm, Inc. Fibre-containing diamond-impregnated cutting tools
AU2012211429A1 (en) 2006-11-30 2012-08-30 Longyear Tm, Inc. Fiber-containing diamond-impregnated cutting tools
US7695542B2 (en) 2006-11-30 2010-04-13 Longyear Tm, Inc. Fiber-containing diamond-impregnated cutting tools
EP2092155A2 (en) 2006-11-30 2009-08-26 Boart Longyear Fiber-containing diamond-impregnated cutting tools
US20140311809A1 (en) 2006-11-30 2014-10-23 Longyear Tm, Inc. Fiber-Containing Diamond-Impregnated Cutting Tools And Methods Of Forming And Using Same
AU2011226849A1 (en) 2006-11-30 2011-10-13 Longyear Tm, Inc. Fiber-containing diamond-impregnated cutting tools
CA2671193A1 (en) 2006-11-30 2008-07-17 Kristian Drivdahl Fiber-containing diamond-impregnated cutting tools
US8146686B2 (en) 2006-11-30 2012-04-03 Longyear Tm, Inc. Fiber-containing cutting tools
US8191445B2 (en) 2006-11-30 2012-06-05 Longyear Tm, Inc. Methods of forming fiber-containing diamond-impregnated cutting tools
AU2012211431A1 (en) 2006-11-30 2012-08-30 Longyear Tm, Inc. Fiber-containing diamond-impregnated cutting tools
AU2007342231A1 (en) 2006-11-30 2008-07-17 Longyear Tm, Inc. Fiber-containing diamond-impregnated cutting tools
US8783384B2 (en) 2006-11-30 2014-07-22 Longyear Tm, Inc. Fiber-containing diamond-impregnated cutting tools and methods of forming and using same
US20110067924A1 (en) 2009-09-22 2011-03-24 Longyear Tm, Inc. Impregnated cutting elements with large abrasive cutting media and methods of making and using the same
US20140013675A1 (en) 2012-06-29 2014-01-16 Yinggang Tian Abrasive Article and Method Of Forming
WO2015148910A1 (en) 2014-03-28 2015-10-01 Longyear Tm, Inc. Fiber-containing diamond-impregnated cutting tools and methods of forming and using same

Non-Patent Citations (83)

* Cited by examiner, † Cited by third party
Title
Amendment and Request for Reconsideration After Non-Final Office Action filed Jan. 23, 2014 for U.S. Appl. No. 13/477,989, filed May 22, 2012 and published as U.S. 2012/0228036 on Sep. 13, 2012 Inventor: Drivdahl; Applicant-Boart Longyear) (1 Page).
Amendment and Request for Reconsideration After Non-Final Office Action Filed Jul. 8, 2013 for U.S. Appl. No. 13/477,989, filed May 22, 2012 and Published as U.S. 2012/0228036 on Sep. 13, 2012 (Inventor: Drivdahl; Applicant-Boart Longyear) (1 Page).
Amendment and Response to Final Office Action filed with the USPTO on Apr. 14, 2010 for U.S. Appl. No. 12/276,903, filed Nov. 24, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (10 pages).
Amendment and Response to Final Office Action filed with the USPTO on Jul. 27, 2010 for U.S. Appl. No. 12/276,903, filed Nov. 24, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (15 pages).
Amendment and Response to Final Office Action filed with the USPTO on Mar. 29, 2010 for U.S. Appl. No. 12/276,870, filed Nov. 24, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (12 pages).
Amendment and Response to Non-Final Office Action filed on Oct. 7, 2009 for U.S. Appl. No. 11/948,185, filed Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (14 pages).
Amendment and Response to Office Action filed on Sep. 17, 2012 for Chinese PatentApplication No. 200780050729.8, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (10 pages).
Amendment and Response to Office Action filed with the USPTO on Apr. 23, 2009 for U.S. Appl. No. 11/948,185, filed Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (12pages).
Amendment and Response to Office Action filed with the USPTO on Aug. 6, 2010 for U.S. Appl. No. 12/276,870, filed Nov. 24, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (16 pages).
Amendment and Response to Office Action filed with the USPTO on Feb. 12, 2011 for U.S. Appl. No. 12/276,870, filed Nov. 24, 2008 [Inventor-Drivdahl; Applicant-Boart Longyear) (14 pages).
Amendment and Response to Office Action filed with the USPTO on Oct. 21, 2009 for U.S. Appl. No. 12/276,870, filed Nov. 24, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (14 pages).
Amendment filed on Jan. 27, 2012 for Canadian Application No. 2,267,193, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (11 pages).
Amendment/ Request for Reconsideration after Non-Final Rejection filed with the USPTO on Dec. 11, 2011 for U.S. Appl. No. 12/276,903, filed Nov. 24, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (11 pages).
Applicant to Amend a Complete Specification filed on Jun. 14, 2010 for South African Patent Application No. 2009/03902, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (1 page).
Applicant-Initiated Interview Summary issued on Dec. 9, 2011 for U.S. Appl. No. 12/561,936, filed Sep. 17, 2009 (Inventor-Drivdahl; Applicant-Boart Longyear) (3 pages).
Applicant's Arguments and Remarks Made in an Amendment filed Jan. 23, 2014 for U.S. Appl. No. 13/477,989, filed May 22, 2012 and published as U.S. 2012/0228036 on Sep. 13, 2012 Inventor: Drivdahl; Applicant-Boart Longyear) (2 Pages).
Applicant's Arguments and Remarks Made in an Amendment filed Jul. 8, 2013 for U.S. Appl. No. 13/477,989, filed May 22, 2012 and published as U.S. 2012/02258036 on Sep. 13, 2012 (Inventor: Drivdahl; Applicant-Boart Longyear) (3 Pages).
Beaton, T. and K. Johnson, New Technology in Diamond Drill Bits Improves Performance in Variable Formations, IADC/SPE Drilling Conference, pp. 1-7 (2000).
European Search Report and Written Opinion issued on Aug. 26, 2015 by the European Patent Office for European Patent Application No. 07865035.5, which was filed on Jun. 26, 2009 and published as 2092155 on Aug. 26, 2009 (Inventor-Drivdahl et al.; Applicant-Longyear TM, Inc.) (5 pages).
Ex Parte Quayle Action issued on Aug. 18, 2009 for U.S. Appl. No. 11/948,185, filed Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (7 pages).
Examiner's First Report issued on Feb. 13, 2013 for Australian Patent Application No. 2012211429, which was filed on 08/08112 (Inventor-Drivdahl; Applicant-Boart Longyear) (2 pages).
Examiner's First Report issued on Feb. 13, 2013 for Australian Patent Application No. 2012211431, which was filed on 08/08112 (Inventor-Drivdahl; Applicant-Boart Longyear) (2 pages).
Examiner's First Report issued on May 21, 2012 for Australian Patent Application No. 2011226848, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Lonyear) (4 pages).
Examiner's First Report issued on May 22, 2012 for Australian Patent Application No. 2011226850, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (3 pages).
Examiner's First Report issued on May 7, 2012 for Australian Patent Application No. 2011226849, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (3 pages).
Examiner's First Report issued on Oct. 21, 2010 for Australian Patent Application No. 2007342231, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (3 pages).
Examiner's Second Report issued on Mar. 21, 2011 for Australian Patent Application No. 2007342231, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (2 pages).
Extended European Search Report issued on Sep. 25, 2015 by the European Patent Office for application 12826384.5, filed on Jun. 25, 2012, and published as EP 2748403 on Jul. 2, 2014 (Applicant-Longyear TM, Inc. // Inventor-Rupp, et al.) (6 pages).
Final Rejection issued on Apr. 27, 2010 for U.S. Appl. No. 12/276,903, filed Nov. 24, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (10 pages).
Final Rejection issued on Jan. 19, 2010 for U.S. Appl. No. 12/276,903, filed Nov. 24, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (9 pages).
Final Rejection issued on Nov. 27, 2009 for U.S. Application No. 12/276,870, filed Nov. 24, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (6 pages).
First Office Action issued on Sep. 21, 2011 for Chinese Patent Application No. 200780050729.8, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (11 pages).
Fourth Office Action issued on Sep. 28, 2012 for Chinese Patent Application No. 200780050729.8, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (6 pages).
International Preliminary Report on Patentability issued by the International Bureau on Aug. 5, 2008 for PCT/US2007/086156, which was filed on Nov. 30, 2007 and published as WO 2008085616 on Jul. 17, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (14 pages).
International Search Report and Written Opinion issued by the International Bureau on Aug. 5, 2008 for PCT/US2007/086156, which was filed on Nov. 30, 2007 and published as WO 2008085616 on Jul. 17, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (14 pages).
International Search Report and Written Opinion mailed on Jul. 8, 2015 by the International Searching Authority for International Patent Application No. PCT/US2015/022965, which was filed on Mar. 27, 2015 and published as WO 2015/148910 on Oct. 1, 2015 (Inventor-Drivdahl et al.; Applicant-Longyear TM, Inc.) (7 pages).
Issue Notification issued on Jun. 22, 2011 for U.S. Appl. No. 12/276,870, filed Nov. 24, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (1 page).
Issue Notification issued on Mar. 14, 2012 for U.S. Appl. No. 12/561,936, filed Sep. 17, 2009 (Inventor-Drivdahl; Applicant-Boart Longyear) (1 page).
Issue Notification issued on Mar. 24, 2010 for U.S. Appl. No. 11/948,185, filed Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (1 page).
Issue Notification issued on May 16, 2012 for U.S. Appl. No. 12/276,903, filed Nov. 24, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (1 page).
Letters Patent issued on Dec. 20, 2012 for Australian Patent Application No. 2011226849, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (23 pages).
Letters Patent Issued on Feb. 29, 2012 for South African Patent Application No. 2010/04148, which was filed on Jun. 10, 2012 (Inventor-Drivdahl; Applicant-Boart Longyear) (1 page).
Letters Patent Issued on Feb. 29, 2012 for South African Patent Application No. 2010/04149, which was filed on Jun. 10, 2012 (Inventor-Drivdahl; Applicant-Boart Longyear) (1 page).
Letters Patent Issued on Feb. 29, 2012 for South African Patent Application No. 2010/04150, which was filed on Jun. 10, 2012 (Inventor-Drivdahl; Applicant-Boart Longyear) (1 page).
Letters Patent Issued on May 25, 2011 for South African Patent Application No. 2009/03902, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (1 page).
Non-Final Office Action issued Apr. 8, 2013 for U.S. Appl. No. 13/477,989, filed May 22, 2012 and published as U.S. 2012/0228036 on Sep. 13, 2012 (Inventor-Drivdahl; Applicant-Boart Longyear) (8 Pages).
Non-Final Office Action issued Dec. 15, 2015 for U.S. Appl. No. 14/319,763, filed Jun. 30, 2014, and published as U.S. 2014/0311809 on Oct. 23, 2014 (Inventor: Drivdahl; Applicant-Boart Longyear (15 Pages).
Non-Final Office Action issued Oct. 23, 2013 for U.S. Appl. No. 13/477,989, filed May 22, 2012 and published as U.S. 2012/0228036 on Sep. 13, 2012 Inventor: Drivdahl; Applicant-Boart Longyear) (7 Pages).
Non-Final Rejection issued on Jan. 26, 2009 for U.S. Appl. No. 11/948,185, filed Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (6 pages).
Non-Final Rejection issued on May 12, 2010 for U.S. Appl. No. 12/276,870, filed Nov. 24, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (6 pages).
Non-Final Rejection issued on May 21, 2009 for U.S. Appl. No. 12/276,870, filed Nov. 24, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (10 pages).
Non-Final Rejection issued on Nov. 14, 2011 for U.S. Appl. No. 12/276,903, filed Nov. 24, 2008 [Inventor-Drivdahl; Applicant-Boart Longyear) (8 pages).
Non-Final Rejection issued on Nov. 14, 2011 for U.S. Appl. No. 12/561,936, filed Sep. 17, 2009 (Inventor-Drivdahl; Applicant-Boart Longyear) (10 pages).
Non-Final Rejection issued on Oct. 19, 2010 for U.S. Appl. No. 12/276,870, filed Nov. 24, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (8 pages).
Non-Final Rejection issued on Oct. 5, 2009 for U.S. Appl. No. 11/948,185, filed Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (6 pages).
Non-Final Rejection issued on Sep. 24, 2009 for U.S. Appl. No. 12/276,903, filed Nov. 24, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (9 pages).
Notice of Acceptance issued on Aug. 27, 2012 for Australian Patent Application No. 2011226849, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (3 pages).
Notice of Acceptance issued on Jun. 9, 2011 for Australian Patent Application No. 2007342231, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (1 page).
Notice of Allowance issued Mar. 11, 2014 for U.S. Appl. No. 13/477,989, filed May 22, 2012 and published as U.S. 2012/0228036 on Sep. 13, 2012 Inventor-Drivdahl; Applicant-Boart Longyear) (6 Pages).
Notice of Allowance issued on Feb. 12, 2010 for U.S. Appl. No. 11/948,185, filed Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (4 pages).
Notice of Allowance issued on Feb. 6, 2013 for Chinese Patent Application No. 200780050729.8, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (2 pages).
Notice of Allowance issued on Feb. 9, 2012 for U.S. Appl. No. 12/276,903, filed Nov. 24, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (7 pages).
Notice of Allowance issued on Jan. 10, 2012 for U.S. Appl. No. 12/561,936, filed Sep. 17, 2009 (Inventor-Drivdahl; Applicant-Boart Longyear) (7 pages).
Notice of Allowance issued on Mar. 7, 2011 for U.S. Appl. No. 12/276,870, filed Nov. 24, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (7 pages).
Office Action issued on Dec. 9, 2010 for Canadian Application No. 2,267,193, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (2 pages).
Request for Continued Examination filed with the USPTO on Apr. 26, 2010 for U.S. Appl. No. 12/276,870, filed Nov. 24, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (3 pages).
Request for Continued Examination filed with the USPTO on Apr. 26, 2010 for U.S. Appl. No. 12/276,903, filed Nov. 24, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (3 pages).
Request for Continued Examination filed with the USPTO on Jul. 27, 2010 for U.S. Appl. No. 12/276,903, filed Nov. 24, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (3 pages).
Request for Continued Examination filed with the USPTO on Sep. 17, 2009 for U.S. Appl. No. 11/948,185, filed Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (3 pages).
Requirement for Restriction/Election issued on Aug. 3, 2009 for U.S. Appl. No. 12/276,903, filed Nov. 24, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (9 pages).
Requirement for Restriction/Election issued on Sep. 9, 2008 for U.S. Appl. No. 11/948,185, filed Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear (8 pages).
Response to Ex Parte Quayle Action and Amendment filed with the USPTO on Sep. 17, 2009 for U.S. Appl. No. 11/948,185, filed Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (6 pages).
Response to Examination Report filed on Aug. 8, 2012 for Australian Patent Application No. 2011226849, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (13 pages).
Response to Examiner's First Report filed on Mar. 15, 2011 for Australian Patent Application No. 2007342231, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (23 pages).
Response to Non-Final Rejection filed with the USPTO on Nov. 23, 2009 for U.S. Appl. No. 12/276,903, filed Nov. 24, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (12 pages).
Response to Office Action filed on Dec. 23, 2011 for Chinese Patent Application No. 200780050729.8, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (8 pages).
Response to Office Action filed on Dec. 4, 2012 for Chinese Patent Application No. 200780050729.8, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (9 pages).
Response to Office Action filed on Jul. 3, 2012 for Chinese Patent Application No. 200780050729.8, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (10 pages).
Response to Office Action filed on Jun. 8, 2011 for Canadian Application No. 2,267, 193, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (10 pages).
Response to Restriction and Election of Species Requirement filed with the USPTO on Sep. 3, 2009 for U.S. Appl. No. 12/276,903, filed Nov. 24, 2008 (Inventor-Drivdahl; Applicant-Boart Longyear) (3 pages).
Response to Restriction Requirement filed with the USPTO on Oct. 8, 2008 for U.S. Appl. No. 11/948,185, filed Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (2pages).
Second Office Action issued on Mar. 21, 2012 for Chinese Patent Application No. 200780050729.8, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear) (13 pages).
Third Office Action issued on Jun. 3, 2012 for Chinese Patent Application No. 200780050729.8, which was filed on Nov. 30, 2007 (Inventor-Drivdahl; Applicant-Boart Longyear (5 pages).

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180029406A1 (en) * 2015-01-29 2018-02-01 Aros S.R.L. Process for the production of stone material manufactured articles
CN111893405A (en) * 2020-06-23 2020-11-06 西安理工大学 Titanium fiber toughening cold heading die and preparation method thereof

Also Published As

Publication number Publication date
US20170087693A1 (en) 2017-03-30
US20140231149A1 (en) 2014-08-21

Similar Documents

Publication Publication Date Title
US9404311B2 (en) Fiber-containing diamond-impregnated cutting tools and methods of forming and using same
US9540883B2 (en) Fiber-containing diamond-impregnated cutting tools and methods of forming and using same
US9446503B2 (en) High-strength, high-hardness binders and drilling tools formed using the same
CA2846022C (en) Impregnated drilling tools including elongated structures
AU2012211429B2 (en) Fiber-containing diamond-impregnated cutting tools
AU2015235836A1 (en) Fiber-containing diamond-impregnated cutting tools and methods of forming and using same
AU2011226850B2 (en) Fibre-containing diamond-impregnated cutting tools
AU2011226848B2 (en) Fiber-containing diamond-impregnated cutting tools

Legal Events

Date Code Title Description
AS Assignment

Owner name: LONGYEAR TM, INC., UTAH

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DRIVDAHL, KRISTIAN S.;RUPP, MICHAEL D.;LAMBERT, CHRISTIAN M.;AND OTHERS;SIGNING DATES FROM 20140416 TO 20140423;REEL/FRAME:032769/0047

AS Assignment

Owner name: U.S. BANK NATIONAL ASSOCIATION, UTAH

Free format text: SECURITY INTEREST;ASSIGNOR:LONGYEAR TM, INC.;REEL/FRAME:032818/0625

Effective date: 20140429

AS Assignment

Owner name: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT, TE

Free format text: SECURITY INTEREST;ASSIGNOR:LONGYEAR TM, INC.;REEL/FRAME:032855/0636

Effective date: 20140506

AS Assignment

Owner name: WILMINGTON TRUST, N.A., MINNESOTA

Free format text: SECURITY INTEREST (TERM LOAN A);ASSIGNOR:LONGYEAR TM, INC.;REEL/FRAME:034085/0704

Effective date: 20141022

Owner name: WILMINGTON TRUST, N.A., MINNESOTA

Free format text: SECURITY INTEREST (TERM LOAN B);ASSIGNOR:LONGYEAR TM, INC.;REEL/FRAME:034085/0775

Effective date: 20141022

Owner name: LONGYEAR TM, INC., UTAH

Free format text: RELEASE OF SECURITY INTEREST RECORDED AT REEL/FRAME 032855/0636;ASSIGNOR:BANK OF AMERICA, N.A.;REEL/FRAME:034085/0585

Effective date: 20141020

STCF Information on status: patent grant

Free format text: PATENTED CASE

AS Assignment

Owner name: WILMINGTON TRUST, NATIONAL ASSOCIATION, DELAWARE

Free format text: SECURITY INTEREST;ASSIGNOR:LONGYEAR TM, INC.;REEL/FRAME:043790/0390

Effective date: 20170901

AS Assignment

Owner name: U.S. BANK NATIONAL ASSOCIATION, UTAH

Free format text: SECURITY INTEREST;ASSIGNOR:LONGYEAR TM, INC.;REEL/FRAME:046919/0089

Effective date: 20180919

Owner name: WILMINGTON TRUST, NATIONAL ASSOCIATION, MINNESOTA

Free format text: SECURITY INTEREST (TERM LOAN B);ASSIGNOR:LONGYEAR TM, INC.;REEL/FRAME:047113/0132

Effective date: 20180919

Owner name: WILMINGTON TRUST, NATIONAL ASSOCIATION, MINNESOTA

Free format text: SECURITY INTEREST (TERM LOAN A);ASSIGNOR:LONGYEAR TM, INC.;REEL/FRAME:047113/0126

Effective date: 20180919

AS Assignment

Owner name: WILMINGTON TRUST, NATIONAL ASSOCIATION, DELAWARE

Free format text: SECURITY INTEREST;ASSIGNOR:LONGYEAR TM, INC.;REEL/FRAME:047995/0475

Effective date: 20181231

Owner name: WILMINGTON TRUST, NATIONAL ASSOCIATION, DELAWARE

Free format text: SECURITY INTEREST;ASSIGNOR:LONGYEAR TM, INC.;REEL/FRAME:047995/0550

Effective date: 20181231

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 4

AS Assignment

Owner name: HPS INVESTMENT PARTNERS, LLC, NEW YORK

Free format text: SECURITY INTEREST;ASSIGNOR:LONGYEAR TM, INC.;REEL/FRAME:057632/0481

Effective date: 20210908

AS Assignment

Owner name: LONGYEAR TM, INC., UTAH

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:U.S. BANK NATIONAL ASSOCIATION, AS COLLATERAL AGENT;REEL/FRAME:057878/0718

Effective date: 20210923

Owner name: LONGYEAR TM, INC., UTAH

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT;REEL/FRAME:057676/0056

Effective date: 20210923

Owner name: LONGYEAR TM, INC., UTAH

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT;REEL/FRAME:057675/0705

Effective date: 20210923

Owner name: LONGYEAR TM, INC., UTAH

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT;REEL/FRAME:057675/0461

Effective date: 20190118

Owner name: LONGYEAR TM, INC., UTAH

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT;REEL/FRAME:057675/0405

Effective date: 20190118

Owner name: LONGYEAR TM, INC., UTAH

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT;REEL/FRAME:057687/0001

Effective date: 20210923

AS Assignment

Owner name: BOART LONGYEAR COMPANY, UTAH

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LONGYEAR TM, INC.;REEL/FRAME:065708/0633

Effective date: 20230901